CVE-2022-44638 is a critical heap-based buffer overflow vulnerability in libpixman (Pixman before version 0.42.2), stemming from an integer overflow in the rasterize_edges_8 function. This flaw affects various Debian and Fedora distributions, as well as the Pixman library itself. With a CVSS score of 8.8 (High), it presents a significant risk, allowing unauthenticated attackers to achieve high confidentiality, integrity, and availability impacts with low attack complexity, though user interaction is required. Despite its severity, there is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 0.42.2CPE matchmatch criteria | cpe:2.3:a:pixman:pixman:*:*:*:*:*:*:*:* | ||
10.0CPE matchmatch criteria | cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* | ||
11.0CPE matchmatch criteria | cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* | ||
35CPE matchmatch criteria | cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* | ||
36CPE matchmatch criteria | cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
No social media mentions found for this CVE.
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.
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.
Nov 8, 2022pixman: Integer overflow in pixman_sample_floor_y leading to heap out-of-bounds write
Nov 3, 2022