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CVE-2023-24056

Published: 22 January 2023

In pkgconf through 1.9.3, variable duplication can cause unbounded string expansion due to incorrect checks in libpkgconf/tuple.c:pkgconf_tuple_parse. For example, a .pc file containing a few hundred bytes can expand to one billion bytes.

Priority

Medium

Cvss 3 Severity Score

5.5

Score breakdown

Status

Package Release Status
pkgconf
Launchpad, Ubuntu, Debian
bionic Needs triage

focal Needs triage

jammy Needs triage

kinetic Ignored
(end of life, was needs-triage)
lunar Not vulnerable
(1.8.1-1ubuntu2)
mantic Not vulnerable
(1.8.1-1ubuntu2)
trusty Ignored
(end of standard support)
upstream
Released (1.8.1-1)
xenial Needs triage

Patches:
upstream: https://gitea.treehouse.systems/ariadne/pkgconf/commit/628b2b2bafa5d3a2017193ddf375093e70666059
upstream: https://gitea.treehouse.systems/ariadne/pkgconf/commit/81cc9b3e6dafcdd02579bcccec6ac47d91e5d023

Severity score breakdown

Parameter Value
Base score 5.5
Attack vector Local
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H