Vulnerabilities > CVE-2023-6779 - Out-of-bounds Write vulnerability in multiple products

047910
CVSS 7.5 - HIGH
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
NONE
Integrity impact
NONE
Availability impact
HIGH
network
low complexity
gnu
fedoraproject
CWE-787

Summary

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.

Vulnerable Configurations

Part Description Count
Application
Gnu
136
OS
Fedoraproject
2

Common Weakness Enumeration (CWE)