CVE-2022-44638
Published: November 3, 2022Last modified: November 8, 2023
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.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 8.8 |
| Attack Vector | NETWORK |
| Attack complexity | LOW |
| Privileges required | NONE |
| User interaction | REQUIRED |
| Scope | UNCHANGED |
| Confidentiality | HIGH |
| Integrity impact | HIGH |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | pixman | Not affected (0.42.2-r0) |
| Stream | pixman | Fixed (0.42.2-r2) |
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