Description
Integer overflow in the create_bits function in pixman-bits-image.c in Pixman before 0.32.6 allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via large height and stride values.
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 | 0.32.6-1 | — |
| Debian 13 | pixman | 0.32.6-1 | — |
| Debian 12 | pixman | 0.32.6-1 | — |
| Debian 7 | pixman | 0.26.0-4+deb7u2 | DSA-3525-1 |
| Debian 6.0 | pixman | 0.16.4-1+deb6u2 | DLA-429-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 14.04 LTS | pixman | 0.30.2-2ubuntu1.1 | USN-2918-1 |
Advisories 3
- USN-2918-1 pixman vulnerability Ubuntu Security Notices (USN) · Apr 22, 2026
- DLA-429-1 pixman - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-3525-1 pixman - security update Debian Security (DSA / DLA) · Mar 9, 2026
References
- https://bugs.freedesktop.org/show_bug.cgi?id=69014
- [Pixman] 20140409 [PATCH] create_bits(): Cast the result of height * stride to size_t mailing-list
- [oss-security] 20160224 [Pixman] create_bits(): Cast the result of height * stride to size_t mailing-list
- https://cgit.freedesktop.org/pixman/commit/?id=857e40f3d2bc2cfb714913e0cd7e6184cf69aca3
- https://bugzilla.redhat.com/show_bug.cgi?id=972647
- http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
- [oss-security] 20160224 Re: [Pixman] create_bits(): Cast the result of height * stride to size_t mailing-list
- [xorg-announce] 20140705 [ANNOUNCE] pixman release 0.32.6 now available mailing-list
- USN-2918-1 vendor-advisory
- DSA-3525 vendor-advisory