CVE-2023-25139

CRITICAL

glibc 2.37 - Out-of-bounds Write in sprintf

Title source: llm
STIX 2.1

Description

sprintf in the GNU C Library (glibc) 2.37 has a buffer overflow (out-of-bounds write) in some situations with a correct buffer size. This is unrelated to CWE-676. It may write beyond the bounds of the destination buffer when attempting to write a padded, thousands-separated string representation of a number, if the buffer is allocated the exact size required to represent that number as a string. For example, 1,234,567 (with padding to 13) overflows by two bytes.

References (3)

Core 3

Scores

CVSS v3 9.8
EPSS 0.0015
EPSS Percentile 35.5%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact total

Details

CWE
CWE-787
Status published
Products (1)
gnu/glibc 2.37
Published Feb 03, 2023
Tracked Since Feb 18, 2026