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

0.0
medium

Snyk CVSS

    Attack Complexity Low

    Threat Intelligence

    EPSS 0.09% (38th percentile)
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NVD
5.3 medium
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Red Hat
5.3 medium

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  • Snyk ID SNYK-DEBIANUNSTABLE-GLIBC-6210093
  • published 31 Jan 2024
  • disclosed 31 Jan 2024
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Introduced: 31 Jan 2024

CVE-2023-6780 Open this link in a new tab
CWE-131 Open this link 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.