CVE-2023-6779

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.

Affected products

Alt Linux, Ubuntu, Glibc

Gnu Glibc

< 2.39

Fix

Available

CVSS 3.1

8.2 HIGH

EPSS

3.2% (87th percentile)

Weakness

CWE-122, CWE-787

NVD status

Modified

Published

2024-01-31