CVE-2019-18390 Information

Description

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.

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Reference

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=d2cdbcf6a8f2317f250fd54f08aa35dde2fa3e303cd772559e0d73afa136d6818023cfd0c4c8ecc0_0_151

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

NONE

Base Score

HIGH

Base Severity

7.1