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-2023-26552 | CWE-787 Out-of-bounds Write | 5.6 Medium |
CVE-2023-26552 mstolfp in libntp/mstolfp.c in NTP 4.2.8p15 has an out-of-bounds write when adding a decimal point. An adversary may be able to attack a client ntpq process, but cannot attack ntpd. Vendor fix: Update to V2.5.4 or later version ↗ Affected, fixed & timelineAffected:
|
| CVE-2023-26553 | CWE-787 Out-of-bounds Write | 5.6 Medium |
CVE-2023-26553 mstolfp in libntp/mstolfp.c in NTP 4.2.8p15 has an out-of-bounds write when copying the trailing number. An adversary may be able to attack a client ntpq process, but cannot attack ntpd. Vendor fix: Update to V2.5.4 or later version ↗ Affected, fixed & timelineAffected:
|
| CVE-2023-26554 | CWE-787 Out-of-bounds Write | 5.6 Medium |
CVE-2023-26554 mstolfp in libntp/mstolfp.c in NTP 4.2.8p15 has an out-of-bounds write when adding a '\0' character. An adversary may be able to attack a client ntpq process, but cannot attack ntpd. Vendor fix: Update to V2.5.4 or later version ↗ Affected, fixed & timelineAffected:
|
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-2023-26552 | 5.6 Medium | n/a n/a mstolfp in libntp/mstolfp.c in NTP 4.2.8p15 has an out-of-bounds write when adding a decimal point. An adversary may be able to attack a client ntpq … |
| CVE-2023-26553 | 5.6 Medium | n/a n/a mstolfp in libntp/mstolfp.c in NTP 4.2.8p15 has an out-of-bounds write when copying the trailing number. An adversary may be able to attack a client … |
| CVE-2023-26554 | 5.6 Medium | n/a n/a mstolfp in libntp/mstolfp.c in NTP 4.2.8p15 has an out-of-bounds write when adding a '\0' character. An adversary may be able to attack a client ntpq… |
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.