Description
Integer underflow in the pixman_trapezoid_valid macro in pixman.h in Pixman before 0.32.0, as used in X.Org server and cairo, allows context-dependent attackers to cause a denial of service (crash) via a negative bottom value.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | pixman | 0.30.2-2 | — |
| Debian 13 | pixman | 0.30.2-2 | — |
| Debian 12 | pixman | 0.30.2-2 | — |
| Debian 7 | pixman | 0.26.0-4+deb7u1 | DSA-2823-1 |
| Debian 6.0 | pixman | 0.16.4-1+deb6u1 | DSA-2823-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 6 | pixman +1 | 0.26.2-5.1.el6_5 | RHSA-2013:1869 |
| RHEL 5 | pixman +1 | 0.22.0-2.2.el5_10 | RHSA-2013:1869 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat Rhel Productivity 5 | pixman +1 | 0.22.0-2.2.el5_10 | RHSA-2013:1869 |
Advisories 2
- RHSA-2013:1869 Red Hat Security Advisory: pixman security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- DSA-2823-1 pixman - integer underflow Debian Security (DSA / DLA) · Mar 9, 2026
References
- RHSA-2013:1869 vendor-advisory
- USN-2047-1 vendor-advisory
- https://bugs.freedesktop.org/show_bug.cgi?id=67484
- [Pixman] 20131110 [ANNOUNCE] pixman release 0.32.0 now available mailing-list
- [oss-security] 20131204 Re: CVE Request: xorg-server and pixman mailing-list
- openSUSE-SU-2014:0011 vendor-advisory
- openSUSE-SU-2014:0014 vendor-advisory
- openSUSE-SU-2014:0145 vendor-advisory
- DSA-2823 vendor-advisory
- http://cgit.freedesktop.org/pixman/commit/?id=5e14da97f16e421d084a9e735be21b1025150f0c
- openSUSE-SU-2014:0007 vendor-advisory
- [oss-security] 20131203 CVE Request: xorg-server and pixman mailing-list
- https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1197921