CVE-2022-0175

NameCVE-2022-0175
DescriptionA 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.
SourceCVE (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 PackageReleaseVersionStatus
virglrenderer (PTS)buster0.7.0-2fixed
bullseye0.8.2-5fixed
bookworm, sid0.10.3-2fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
virglrenderersource(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

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