Incorrect Calculation of Buffer Size Affecting glibc package, versions <2.37-15


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.09% (40th percentile)

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  • Snyk IDSNYK-DEBIANUNSTABLE-GLIBC-6210093
  • published31 Jan 2024
  • disclosed31 Jan 2024

Introduced: 31 Jan 2024

CVE-2023-6780  (opens in a new tab)
CWE-131  (opens in a new tab)

How to fix?

Upgrade Debian:unstable glibc to version 2.37-15 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream glibc package and not the glibc package as distributed by Debian. See How to fix? for Debian:unstable relevant fixed versions and status.

An integer overflow was found in the __vsyslog_internal function of the glibc library. This function is called by the syslog and vsyslog functions. This issue occurs when these functions are called with a very long message, leading to an incorrect calculation of the buffer size to store the message, resulting in undefined behavior. This issue affects glibc 2.37 and newer.

CVSS Scores

version 3.1