Republished vendor advisory. This CISA CSAF advisory was converted from Siemens ProductCERT's CSAF advisory.
General Recommendations: As a general security measure, Siemens strongly recommends to protect network access to devices with appropriate mechanisms. In order to operate the devices in a protected IT environment, Siemens recommends to configure the environment according to Siemens' operational guidelines for Industrial Security (Download: https://www.siemens.com/cert/operational-guidelines-industrial-security), and to follow the recommendations in the product manuals. Additional information on Industrial Security by Siemens can be found at: https://www.siemens.com/industrialsecurity
Additional Resources: For further inquiries on security vulnerabilities in Siemens products and solutions, please contact the Siemens ProductCERT: https://www.siemens.com/cert/advisories
Credit: Siemens ProductCERT
From CISA's machine-readable CSAF 2.0 advisory (JSON).
| CVE | Weakness | CVSS v3 | Details |
|---|---|---|---|
| CVE-2023-41910 | CWE-125 Out-of-bounds Read | 9.8 Critical |
CVE-2023-41910 An issue was discovered in lldpd before 1.0.17. By crafting a CDP PDU packet with specific CDP_TLV_ADDRESSES TLVs, a malicious actor can remotely force the lldpd daemon to perform an out-of-bounds read on heap memory. This occurs in cdp_decode in daemon/protocols/cdp.c. Vendor fix: Update to V2.3 or later version ↗ Affected, fixed & timelineAffected:
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| CVE-2022-3545 | CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer | 7.8 High |
CVE-2022-3545 A vulnerability has been found in Linux Kernel and classified as critical. Affected by this vulnerability is the function area_cache_get of the file drivers/net/ethernet/netronome/nfp/nfpcore/nfp_cppcore.c of the component IPsec. The manipulation leads to use after free. It is recommended to apply a patch to fix this issue. The identifier VDB-211045 was assigned to this vulnerability. Vendor fix: Update to V2.3 or later version ↗ Affected, fixed & timelineAffected:
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| CVE-2022-40304 | CWE-415 Double Free | 7.8 High |
CVE-2022-40304 An issue was discovered in libxml2 before 2.10.3. Certain invalid XML entity definitions can corrupt a hash table key, potentially leading to subsequent logic errors. In one case, a double-free can be provoked. Vendor fix: Update to V2.3 or later version ↗ Affected, fixed & timelineAffected:
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| CVE-2022-40303 | CWE-190 Integer Overflow or Wraparound | 7.5 High |
CVE-2022-40303 An issue was discovered in libxml2 before 2.10.3. When parsing a multi-gigabyte XML document with the XML_PARSE_HUGE parser option enabled, several integer counters can overflow. This results in an attempt to access an array at a negative 2GB offset, typically leading to a segmentation fault. Vendor fix: Update to V2.3 or later version ↗ Affected, fixed & timelineAffected:
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| CVE-2023-0464 | CWE-295 Improper Certificate Validation | 7.5 High |
CVE-2023-0464 A security vulnerability has been identified in all supported versions of OpenSSL related to the verification of X.509 certificate chains that include policy constraints. Attackers may be able to exploit this vulnerability by creating a malicious certificate chain that triggers exponential use of computational resources, leading to a denial-of-service (DoS) attack on affected systems. Policy processing is disabled by default but can be enabled by passing the `-policy` argument to the command line utilities or by calling the `X509_VERIFY_PARAM_set1_policies()` function. Vendor fix: Update to V2.3 or later version ↗ Affected, fixed & timelineAffected:
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| CVE-2023-38380 | CWE-401 Missing Release of Memory after Effective Lifetime | 7.5 High |
CVE-2023-38380 The webserver implementation of the affected products does not correctly release allocated memory after it has been used. An attacker with network access could use this vulnerability to cause a denial-of-service condition in the webserver of the affected product. Vendor fix: Update to V2.3 or later version ↗ Affected, fixed & timelineAffected:
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| CVE-2023-0286 | CWE-20 Improper Input Validation | 7.4 High |
CVE-2023-0286 There is a type confusion vulnerability relating to X.400 address processing inside an X.509 GeneralName. X.400 addresses were parsed as an ASN1_STRING but the public structure definition for GENERAL_NAME incorrectly specified the type of the x400Address field as ASN1_TYPE. This field is subsequently interpreted by the OpenSSL function GENERAL_NAME_cmp as an ASN1_TYPE rather than an ASN1_STRING. When CRL checking is enabled (i.e. the application sets the X509_V_FLAG_CRL_CHECK flag), this vulnerability may allow an attacker to pass arbitrary pointers to a memcmp call, enabling them to read memory contents or enact a denial of service. In most cases, the attack requires the attacker to provide both the certificate chain and CRL, neither of which need to have a valid signature. If the attacker only controls one of these inputs, the other input must already contain an X.400 address as a CRL distribution point, which is uncommon. As such, this vulnerability is most likely to only affect applications which have implemented their own functionality for retrieving CRLs over a network. Vendor fix: Update to V2.3 or later version ↗ Affected, fixed & timelineAffected:
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| CVE-2022-3643 | CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') | 6.5 Medium |
CVE-2022-3643 Guests can trigger NIC interface reset/abort/crash via netback It is possible for a guest to trigger a NIC interface reset/abort/crash in a Linux based network backend by sending certain kinds of packets. It appears to be an (unwritten?) assumption in the rest of the Linux network stack that packet protocol headers are all contained within the linear section of the SKB and some NICs behave badly if this is not the case. This has been reported to occur with Cisco (enic) and Broadcom NetXtrem II BCM5780 (bnx2x) though it may be an issue with other NICs/drivers as well. In case the frontend is sending requests with split headers, netback will forward those violating above mentioned assumption to the networking core, resulting in said misbehavior. Vendor fix: Update to V2.3 or later version ↗ Affected, fixed & timelineAffected:
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| CVE-2022-44792 | CWE-476 NULL Pointer Dereference | 6.5 Medium |
CVE-2022-44792 handle_ipDefaultTTL in agent/mibgroup/ip-mib/ip_scalars.c in Net-SNMP 5.8 through 5.9.3 has a NULL Pointer Exception bug that can be used by a remote attacker (who has write access) to cause the instance to crash via a crafted UDP packet, resulting in Denial of Service. Vendor fix: Update to V2.3 or later version ↗ Affected, fixed & timelineAffected:
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| CVE-2022-44793 | CWE-476 NULL Pointer Dereference | 6.5 Medium |
CVE-2022-44793 handle_ipv6IpForwarding in agent/mibgroup/ip-mib/ip_scalars.c in Net-SNMP 5.4.3 through 5.9.3 has a NULL Pointer Exception bug that can be used by a remote attacker to cause the instance to crash via a crafted UDP packet, resulting in Denial of Service. Vendor fix: Update to V2.3 or later version ↗ Affected, fixed & timelineAffected:
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| CVE-2023-28484 | CWE-476 NULL Pointer Dereference | 6.5 Medium |
CVE-2023-28484 In libxml2 before 2.10.4, parsing of certain invalid XSD schemas can lead to a NULL pointer dereference and subsequently a segfault. This occurs in xmlSchemaFixupComplexType in xmlschemas.c. Vendor fix: Update to V2.3 or later version ↗ Affected, fixed & timelineAffected:
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| CVE-2023-29469 | CWE-415 Double Free | 6.5 Medium |
CVE-2023-29469 An issue was discovered in libxml2 before 2.10.4. When hashing empty dict strings in a crafted XML document, xmlDictComputeFastKey in dict.c can produce non-deterministic values, leading to various logic and memory errors, such as a double free. This behavior occurs because there is an attempt to use the first byte of an empty string, and any value is possible (not solely the '\0' value). Vendor fix: Update to V2.3 or later version ↗ Affected, fixed & timelineAffected:
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| CVE-2022-4304 | CWE-326 Inadequate Encryption Strength | 5.9 Medium |
CVE-2022-4304 A timing based side channel exists in the OpenSSL RSA Decryption implementation which could be sufficient to recover a plaintext across a network in a Bleichenbacher style attack. To achieve a successful decryption an attacker would have to be able to send a very large number of trial messages for decryption. The vulnerability affects all RSA padding modes: PKCS#1 v1.5, RSA-OEAP and RSASVE. For example, in a TLS connection, RSA is commonly used by a client to send an encrypted pre-master secret to the server. An attacker that had observed a genuine connection between a client and a server could use this flaw to send trial messages to the server and record the time taken to process them. After a sufficiently large number of messages the attacker could recover the pre-master secret used for the original connection and thus be able to decrypt the application data sent over that connection. Vendor fix: Update to V2.3 or later version ↗ Affected, fixed & timelineAffected:
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| CVE-2022-4450 | CWE-415 Double Free | 5.9 Medium |
CVE-2022-4450 The function PEM_read_bio_ex() reads a PEM file from a BIO and parses and decodes the "name" (e.g. "CERTIFICATE"), any header data and the payload data. If the function succeeds then the "name_out", "header" and "data" arguments are populated with pointers to buffers containing the relevant decoded data. The caller is responsible for freeing those buffers. It is possible to construct a PEM file that results in 0 bytes of payload data. In this case PEM_read_bio_ex() will return a failure code but will populate the header argument with a pointer to a buffer that has already been freed. If the caller also frees this buffer then a double free will occur. This will most likely lead to a crash. This could be exploited by an attacker who has the ability to supply malicious PEM files for parsing to achieve a denial of service attack. The functions PEM_read_bio() and PEM_read() are simple wrappers around PEM_read_bio_ex() and therefore these functions are also directly affected. These functions are also called indirectly by a number of other OpenSSL functions including PEM_X509_INFO_read_bio_ex() and SSL_CTX_use_serverinfo_file() which are also vulnerable. Some OpenSSL internal uses of these functions are not vulnerable because the caller does not free the header argument if PEM_read_bio_ex() returns a failure code. These locations include the PEM_read_bio_TYPE() functions as well as the decoders introduced in OpenSSL 3.0. The OpenSSL asn1parse command line application is also impacted by this issue. Vendor fix: Update to V2.3 or later version ↗ Affected, fixed & timelineAffected:
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| CVE-2023-0215 | CWE-416 Use After Free | 5.9 Medium |
CVE-2023-0215 The public API function BIO_new_NDEF is a helper function used for streaming ASN.1 data via a BIO. It is primarily used internally to OpenSSL to support the SMIME, CMS and PKCS7 streaming capabilities, but may also be called directly by end user applications. The function receives a BIO from the caller, prepends a new BIO_f_asn1 filter BIO onto the front of it to form a BIO chain, and then returns the new head of the BIO chain to the caller. Under certain conditions, for example if a CMS recipient public key is invalid, the new filter BIO is freed and the function returns a NULL result indicating a failure. However, in this case, the BIO chain is not properly cleaned up and the BIO passed by the caller still retains internal pointers to the previously freed filter BIO. If the caller then goes on to call BIO_pop() on the BIO then a use-after-free will occur. This will most likely result in a crash. This scenario occurs directly in the internal function B64_write_ASN1() which may cause BIO_new_NDEF() to be called and will subsequently call BIO_pop() on the BIO. This internal function is in turn called by the public API functions PEM_write_bio_ASN1_stream, PEM_write_bio_CMS_stream, PEM_write_bio_PKCS7_stream, SMIME_write_ASN1, SMIME_write_CMS and SMIME_write_PKCS7. Other public API functions that may be impacted by this include i2d_ASN1_bio_stream, BIO_new_CMS, BIO_new_PKCS7, i2d_CMS_bio_stream and i2d_PKCS7_bio_stream. The OpenSSL cms and smime command line applications are similarly affected. Vendor fix: Update to V2.3 or later version ↗ Affected, fixed & timelineAffected:
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| CVE-2022-42328 | CWE-667 Improper Locking | 5.5 Medium |
CVE-2022-42328 Guests can trigger deadlock in Linux netback driver [This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] The patch for XSA-392 introduced another issue which might result in a deadlock when trying to free the SKB of a packet dropped due to the XSA-392 handling (CVE-2022-42328). Additionally when dropping packages for other reasons the same deadlock could occur in case of netpoll being active for the interface the xen-netback driver is connected to (CVE-2022-42329). Vendor fix: Update to V2.3 or later version ↗ Affected, fixed & timelineAffected:
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| CVE-2022-42329 | CWE-667 Improper Locking | 5.5 Medium |
CVE-2022-42329 Guests can trigger deadlock in Linux netback drive. The patch for XSA-392 introduced another issue which might result in a deadlock when trying to free the SKB of a packet dropped due to the XSA-392 handling (CVE-2022-42328). Additionally when dropping packages for other reasons the same deadlock could occur in case of netpoll being active for the interface the xen-netback driver is connected to (CVE-2022-42329). Vendor fix: Update to V2.3 or later version ↗ Affected, fixed & timelineAffected:
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| CVE-2022-2097 | CWE-326 Inadequate Encryption Strength | 5.3 Medium |
CVE-2022-2097 AES OCB mode for 32-bit x86 platforms using the AES-NI assembly optimised implementation will not encrypt the entirety of the data under some circumstances. This could reveal sixteen bytes of data that was preexisting in the memory that wasn't written. In the special case of "in place" encryption, sixteen bytes of the plaintext would be revealed. Since OpenSSL does not support OCB based cipher suites for TLS and DTLS, they are both unaffected. Vendor fix: Update to V2.3 or later version ↗ Affected, fixed & timelineAffected:
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| CVE-2023-0465 | CWE-295 Improper Certificate Validation | 5.3 Medium |
CVE-2023-0465 Applications that use a non-default option when verifying certificates may be vulnerable to an attack from a malicious CA to circumvent certain checks. Invalid certificate policies in leaf certificates are silently ignored by OpenSSL and other certificate policy checks are skipped for that certificate. A malicious CA could use this to deliberately assert invalid certificate policies in order to circumvent policy checking on the certificate altogether. Policy processing is disabled by default but can be enabled by passing the `-policy` argument to the command line utilities or by calling the `X509_VERIFY_PARAM_set1_policies()` function. Vendor fix: Update to V2.3 or later version ↗ Affected, fixed & timelineAffected:
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| CVE-2023-0466 | CWE-295 Improper Certificate Validation | 5.3 Medium |
CVE-2023-0466 The function X509_VERIFY_PARAM_add0_policy() is documented to implicitly enable the certificate policy check when doing certificate verification. However the implementation of the function does not enable the check which allows certificates with invalid or incorrect policies to pass the certificate verification. As suddenly enabling the policy check could break existing deployments it was decided to keep the existing behavior of the X509_VERIFY_PARAM_add0_policy() function. Instead the applications that require OpenSSL to perform certificate policy check need to use X509_VERIFY_PARAM_set1_policies() or explicitly enable the policy check by calling X509_VERIFY_PARAM_set_flags() with the X509_V_FLAG_POLICY_CHECK flag argument. Certificate policy checks are disabled by default in OpenSSL and are not commonly used by applications. Vendor fix: Update to V2.3 or later version ↗ Affected, fixed & timelineAffected:
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| CVE-2022-3623 | CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') | 5.0 Medium |
CVE-2022-3623 A vulnerability was found in Linux Kernel. It has been declared as problematic. Affected by this vulnerability is the function follow_page_pte of the file mm/gup.c of the component BPF. The manipulation leads to race condition. The attack can be launched remotely. It is recommended to apply a patch to fix this issue. The identifier VDB-211921 was assigned to this vulnerability. Vendor fix: Update to V2.3 or later version ↗ Affected, fixed & timelineAffected:
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| CVE-2023-50763 | CWE-835 Loop with Unreachable Exit Condition ('Infinite Loop') | 4.9 Medium |
CVE-2023-50763 The web server of affected products, if configured to allow the import of PKCS12 containers, could end up in an infinite loop when processing incomplete certificate chains. This could allow an authenticated remote attacker to create a denial of service condition by importing specially crafted PKCS12 containers. Vendor fix: Update to V2.3 or later version ↗ Affected, fixed & timelineAffected:
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| CVE-2022-3435 | CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer | 4.3 Medium |
CVE-2022-3435 A vulnerability classified as problematic has been found in Linux Kernel. This affects the function fib_nh_match of the file net/ipv4/fib_semantics.c of the component IPv4 Handler. The manipulation leads to out-of-bounds read. It is possible to initiate the attack remotely. It is recommended to apply a patch to fix this issue. The identifier VDB-210357 was assigned to this vulnerability. Vendor fix: Update to V2.3 or later version ↗ Affected, fixed & timelineAffected:
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Scores and weakness types are as CISA or the republishing vendor stated them in this advisory; the linked CVE pages carry the independently enriched CVSS and SSVC assessments.
No coverage found in monitored research blogs or news feeds.
| CVE | CVSS | Affected |
|---|---|---|
| CVE-2022-40304 | 7.8 High | n/a n/a An issue was discovered in libxml2 before 2.10.3. Certain invalid XML entity definitions can corrupt a hash table key, potentially leading to subsequ… |
| CVE-2022-40303 | 7.5 High | n/a n/a An issue was discovered in libxml2 before 2.10.3. When parsing a multi-gigabyte XML document with the XML_PARSE_HUGE parser option enabled, several i… |
| CVE-2022-4450 | 7.5 High | OpenSSL OpenSSL The function PEM_read_bio_ex() reads a PEM file from a BIO and parses and decodes the "name" (e.g. "CERTIFICATE"), any header data and the payload da… |
| CVE-2023-0215 | 7.5 High | OpenSSL OpenSSL The public API function BIO_new_NDEF is a helper function used for streaming ASN.1 data via a BIO. It is primarily used internally to OpenSSL to supp… |
| CVE-2023-0464 | 7.5 High | OpenSSL OpenSSL A security vulnerability has been identified in all supported versions of OpenSSL related to the verification of X.509 certificate chains that inclu… |
| CVE-2023-38380 | 7.5 High | Siemens SIMATIC CP 1242-7 V2 (incl. SIPLUS variants) A vulnerability has been identified in SIMATIC CP 1242-7 V2 (incl. SIPLUS variants) (All versions < V3.4.29), SIMATIC CP 1243-1 (incl. SIPLUS variant… |
| CVE-2023-0286 | 7.4 High | OpenSSL OpenSSL There is a type confusion vulnerability relating to X.400 address processing inside an X.509 GeneralName. X.400 addresses were parsed as an ASN1_STRI… |
| CVE-2022-44792 | 6.5 Medium | n/a n/a handle_ipDefaultTTL in agent/mibgroup/ip-mib/ip_scalars.c in Net-SNMP 5.8 through 5.9.3 has a NULL Pointer Exception bug that can be used by a remote… |
| CVE-2022-44793 | 6.5 Medium | n/a n/a handle_ipv6IpForwarding in agent/mibgroup/ip-mib/ip_scalars.c in Net-SNMP 5.4.3 through 5.9.3 has a NULL Pointer Exception bug that can be used by a … |
| CVE-2023-28484 | 6.5 Medium | n/a n/a In libxml2 before 2.10.4, parsing of certain invalid XSD schemas can lead to a NULL pointer dereference and subsequently a segfault. This occurs in x… |
| CVE-2023-29469 | 6.5 Medium | n/a n/a An issue was discovered in libxml2 before 2.10.4. When hashing empty dict strings in a crafted XML document, xmlDictComputeFastKey in dict.c can prod… |
| CVE-2022-42328 | 6.2 Medium | Linux Linux Guests can trigger deadlock in Linux netback driver T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabil… |
| CVE-2022-4304 | 5.9 Medium | OpenSSL OpenSSL A timing based side channel exists in the OpenSSL RSA Decryption implementation which could be sufficient to recover a plaintext across a network in … |
| CVE-2022-3545 | 5.5 Medium | Linux Kernel A vulnerability has been found in Linux Kernel and classified as critical. Affected by this vulnerability is the function area_cache_get of the file … |
| CVE-2022-42329 | 5.5 Medium | Linux Linux Guests can trigger deadlock in Linux netback driver T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabil… |
| CVE-2023-0465 | 5.3 Medium | OpenSSL OpenSSL Applications that use a non-default option when verifying certificates may be vulnerable to an attack from a malicious CA to circumvent certain check… |
| CVE-2023-0466 | 5.3 Medium | OpenSSL OpenSSL The function X509_VERIFY_PARAM_add0_policy() is documented to implicitly enable the certificate policy check when doing certificate verification. How… |
| CVE-2022-3623 | 5.0 Medium | Linux Kernel A vulnerability was found in Linux Kernel. It has been declared as problematic. Affected by this vulnerability is the function follow_page_pte of the… |
| CVE-2023-50763 | 4.9 Medium | Siemens SIMATIC CP 1542SP-1 A vulnerability has been identified in SIMATIC CP 1542SP-1 (6GK7542-6UX00-0XE0) (All versions < V2.3), SIMATIC CP 1542SP-1 IRC (6GK7542-6VX00-0XE0) (… |
| CVE-2022-3435 | 4.3 Medium | Linux Kernel A vulnerability classified as problematic has been found in Linux Kernel. This affects the function fib_nh_match of the file net/ipv4/fib_semantics.c… |
| CVE-2022-2097 | — | OpenSSL OpenSSL AES OCB mode for 32-bit x86 platforms using the AES-NI assembly optimised implementation will not encrypt the entirety of the data under some circums… |
| CVE-2022-3643 | — | Linux Linux Guests can trigger NIC interface reset/abort/crash via netback It is possible for a guest to trigger a NIC interface reset/abort/crash in a Linux bas… |
| CVE-2023-41910 | — | n/a n/a An issue was discovered in lldpd before 1.0.17. By crafting a CDP PDU packet with specific CDP_TLV_ADDRESSES TLVs, a malicious actor can remotely for… |
Named by the advisory itself. Each CVE links to its tracked detail page.
Each vendor links to its Known Exploited Vulnerabilities catalog page. Only vendors that appear in the KEV catalog are listed, either because the publication cites one of their KEV entries or because it names them directly.