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Out-of-bounds Write Affecting glibc package, versions <2.36-9+deb12u4

0.0
high

Snyk CVSS

    Attack Complexity Low
    Availability High

    Threat Intelligence

    EPSS 0.14% (50th percentile)
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NVD
7.5 high
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Red Hat
8.2 high

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  • Snyk ID SNYK-DEBIAN12-GLIBC-6210088
  • published 31 Jan 2024
  • disclosed 31 Jan 2024
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Introduced: 31 Jan 2024

CVE-2023-6779 Open this link in a new tab
CWE-787 Open this link in a new tab

How to fix?

Upgrade Debian:12 glibc to version 2.36-9+deb12u4 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:12 relevant fixed versions and status.

An off-by-one heap-based buffer 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 message bigger than INT_MAX bytes, leading to an incorrect calculation of the buffer size to store the message, resulting in an application crash. This issue affects glibc 2.37 and newer.