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CVE-2023-6780

An integer overflow was found in the __vsyslog_internal function of the glibc library.

Impact

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.

Affected products

VendorProductAffected versions
GnuGlibc
from 2.37 before 2.39
FedoraprojectFedora
Versions 38, 39

Weakness classification

CWE-131CWE-190

References