USN-7959-1
Unknown
USN-7959-1: klibc vulnerabilities
Canonical (Ubuntu)
Released: January 14, 2026
Updated: January 15, 2026
Restart Required
Description
It was discovered that zlib, vendored in klibc, did not properly handle
integer arithmetic. An attacker could possibly use this issue to execute
arbitrary code or cause a denial of service.
Fixed Vulnerabilities 1
May 23, 2017
The crc32_big function in crc32.c in zlib 1.2.8 might allow context-dependent attackers to have unspecified impact via vectors involving big-endian CRC calculation.
Quick Info
Patch ID:
USN-7959-1
Vendor:
Canonical (Ubuntu)
Severity:
Unknown
CVEs Fixed:
1
Restart:
Required
Vendor
Canonical (Ubuntu)Additional Info
action:
usn id:
USN-7959-1
summary:
klibc could be made to crash if it received specially crafted input.
usn number:
7959-1
instructions:
In general, a standard system update will make all the necessary changes.