CVE-2022-0175
Published: August 31, 2023Last modified: August 31, 2023
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.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 5.5 |
| Attack Vector | LOCAL |
| Attack complexity | LOW |
| Privileges required | LOW |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | HIGH |
| Integrity impact | NONE |
| Availability impact | NONE |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | virglrenderer | Not affected (0.10.3-r0) |
| Stream | virglrenderer | Not affected (0.10.4-r2) |
References
- https://access.redhat.com/security/cve/CVE-2022-0175
- https://bugzilla.redhat.com/show_bug.cgi?id=2039003
- https://gitlab.freedesktop.org/virgl/virglrenderer/-/commit/b05bb61f454eeb8a85164c8a31510aeb9d79129c
- https://gitlab.freedesktop.org/virgl/virglrenderer/-/merge_requests/654
- https://security-tracker.debian.org/tracker/CVE-2022-0175
- https://security.gentoo.org/glsa/202210-05