Headline
CVE-2022-0175: CVE-2022-0175
A flaw was found in the VirGL virtual OpenGL renderer (virglrenderer). The virgl did not properly initialize memory when allocating a host-backed memory resource. A malicious guest could use this flaw to mmap from the guest kernel and read this uninitialized memory from the host, possibly leading to information disclosure.
Name
CVE-2022-0175
Description
memory initialization issue in vrend_resource_alloc_buffer() can lead to info leak
Source
CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub advisories/code/issues, web search, more)
Vulnerable and fixed packages
The table below lists information on source packages.
Source Package
Release
Version
Status
virglrenderer (PTS)
buster
0.7.0-2
fixed
bookworm, sid, bullseye
0.8.2-5
fixed
The information below is based on the following data on fixed versions.
Package
Type
Release
Fixed Version
Urgency
Origin
Debian Bugs
virglrenderer
source
(unstable)
(not affected)
Notes
- virglrenderer <not-affected> (Introduced in 0.9.0 with refactor)
https://bugzilla.redhat.com/show_bug.cgi?id=2039003
https://gitlab.freedesktop.org/virgl/virglrenderer/-/merge_requests/654
Code refactored in https://gitlab.freedesktop.org/virgl/virglrenderer/-/commit/7899e057327848300b18d8f03aa3789e00ed0221 (0.9.0)
Fixed by: https://gitlab.freedesktop.org/virgl/virglrenderer/-/commit/b05bb61f454eeb8a85164c8a31510aeb9d79129c
Related news
Gentoo Linux Security Advisory 202210-5 - Multiple vulnerabilities have been discovered in virglrenderer, the worst of which could result in remote code execution. Versions less than 0.10.1 are affected.