CVE-2023-6780

MEDIUM

GNU Glibc < 2.39 - Integer Overflow

Title source: rule

Description

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.

Scores

CVSS v3 5.3
EPSS 0.0023
EPSS Percentile 45.9%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Classification

CWE
CWE-190 CWE-131
Status published

Affected Products (3)

gnu/glibc < 2.39
fedoraproject/fedora
fedoraproject/fedora

Timeline

Published Jan 31, 2024
Tracked Since Feb 18, 2026