What’s Vulnerable › Vulnerabilities
CVE-2022-44638
- Severity: high (CVSS 8.8 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 1.5% probability of exploitation in the next 30 days
- Public exploit or detection template: yes
- Published: 2022-11-03 · updated 2026-06-17
- Weakness: CWE-190
Description
In libpixman in Pixman before 0.42.2, there is an out-of-bounds write (aka heap-based buffer overflow) in rasterize_edges_8 due to an integer overflow in pixman_sample_floor_y.
Affected products
- Debian Linux: 10.0, 11.0
- Fedoraproject Fedora: 35, 36, 37
- The pixman Project pixman: before 0.42.2 — fixed in 0.42.2
How to fix
Upgrade to a fixed version: The pixman Project pixman 0.42.2. Check the vendor advisory for mitigations.
References
- http://packetstormsecurity.com/files/170121/pixman-pixman_sample_floor_y-Integer-Overflow.html
- http://www.openwall.com/lists/oss-security/2022/11/05/1
- https://gitlab.freedesktop.org/pixman/pixman/-/issues/63
- https://lists.debian.org/debian-lts-announce/2022/11/msg00008.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AJ5VY2VYXE4WTRGQ6LMGLF6FV3SY37YE/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BY4OPSIB33ETNUXZY2UPZ4NGQ3OKDY4D/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IUJ2BULJTZ2BMSKQHB6US674P55UCWWS/
- https://www.debian.org/security/2022/dsa-5276
- http://packetstormsecurity.com/files/170121/pixman-pixman_sample_floor_y-Integer-Overflow.html
- http://www.openwall.com/lists/oss-security/2022/11/05/1
- https://gitlab.freedesktop.org/pixman/pixman/-/issues/63
- https://lists.debian.org/debian-lts-announce/2022/11/msg00008.html
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