Vulnerability 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.
CVSS Score
8.8
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Pixman | Pixman | < 0.42.2 |
| Debian | Debian Linux | 10.0 |
| Fedoraproject | Fedora | 35 |
Related Weaknesses (CWE)
References
- http://packetstormsecurity.com/files/170121/pixman-pixman_sample_floor_y-IntegerExploitThird Party Advisory
- http://www.openwall.com/lists/oss-security/2022/11/05/1Mailing List
- https://gitlab.freedesktop.org/pixman/pixman/-/issues/63ExploitIssue TrackingPatch
- https://lists.debian.org/debian-lts-announce/2022/11/msg00008.htmlMailing ListThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://www.debian.org/security/2022/dsa-5276Third Party Advisory
- http://packetstormsecurity.com/files/170121/pixman-pixman_sample_floor_y-IntegerExploitThird Party Advisory
- http://www.openwall.com/lists/oss-security/2022/11/05/1Mailing List
- https://gitlab.freedesktop.org/pixman/pixman/-/issues/63ExploitIssue TrackingPatch
- https://lists.debian.org/debian-lts-announce/2022/11/msg00008.htmlMailing ListThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
FAQ
What is CVE-2022-44638?
CVE-2022-44638 is a vulnerability with a CVSS score of 8.8 (HIGH). 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.
How severe is CVE-2022-44638?
CVE-2022-44638 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2022-44638?
Check the references section above for vendor advisories and patch information. Affected products include: Pixman Pixman, Debian Debian Linux, Fedoraproject Fedora.