Out-of-bounds read - CVE-2019-18390
Published: December 23, 2019 / Updated: August 3, 2020
Vulnerability identifier: #VU33008
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2019-18390
CWE-ID: CWE-125
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor:
Affected software:
Detailed vulnerability description
The vulnerability allows a local authenticated user to #BASIC_IMPACT#.
An out-of-bounds read in the vrend_blit_need_swizzle function in vrend_renderer.c in virglrenderer through 0.8.0 allows guest OS users to cause a denial of service via VIRGL_CCMD_BLIT commands.
How to mitigate CVE-2019-18390
Install update from vendor's website.
Sources
- http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00028.html
- https://access.redhat.com/security/cve/cve-2019-18390
- https://bugzilla.redhat.com/show_bug.cgi?id=1765584
- https://gitlab.freedesktop.org/virgl/virglrenderer/commit/24f67de7a9088a873844a39be03cee6882260ac9
- https://gitlab.freedesktop.org/virgl/virglrenderer/merge_requests/314/diffs?commit_id=d2cdbcf6a8f2317f250fd54f08aa35dde2fa3e30#3cd772559e0d73afa136d6818023cfd0c4c8ecc0_0_151