| Name | CVE-2022-0175 |
| Description | 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| virglrenderer (PTS) | bullseye | 0.8.2-5+deb11u1 | fixed |
| bookworm | 0.10.4-1 | fixed | |
| sid, trixie | 1.1.0-2 | 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) |
- 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