CVE-2025-0395

Severity: medium (CVSS 6.2 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-01-22 · updated 2026-06-17
Weakness: CWE-131

Description

When the assert() function in the GNU C Library versions 2.13 to 2.40 fails, it does not allocate enough space for the assertion failure message string and size information, which may lead to a buffer overflow if the message string size aligns to page size.

Affected products

GNU C Library (glibc): from 2.13 through 2.40

References

https://sourceware.org/bugzilla/show_bug.cgi?id=32582
https://sourceware.org/git/?p=glibc.git;a=blob;f=advisories/GLIBC-SA-2025-0001
https://sourceware.org/pipermail/libc-announce/2025/000044.html
https://www.openwall.com/lists/oss-security/2025/01/22/4
http://www.openwall.com/lists/oss-security/2025/01/22/4
http://www.openwall.com/lists/oss-security/2025/01/23/2
http://www.openwall.com/lists/oss-security/2025/04/13/1
http://www.openwall.com/lists/oss-security/2025/04/24/7
https://lists.debian.org/debian-lts-announce/2025/04/msg00039.html
https://security.netapp.com/advisory/ntap-20250228-0006/
https://cert-portal.siemens.com/productcert/html/ssa-398330.html
https://cert-portal.siemens.com/productcert/html/ssa-577017.html

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