Out-of-bounds read - CVE-2019-18390

Vulnerability identifier: #VU33008

CSH Severity: Low

CVSS v4: 6.9 [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]

CVE-ID: CVE-2019-18390

CWE-ID: CWE-125

Exploitation vector: Local access

Exploit availability: No public exploit available

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.

virglrenderer (Alpine package)
virglrenderer
virglrenderer-debuginfo
virglrenderer-debugsource
virglrenderer-devel
Opensuse
openEuler

Install update from vendor's website.

virglrenderer (Alpine package) - update to 0.8.1-r0
virglrenderer - update to 0.7.0-2
virglrenderer-debuginfo - update to 0.7.0-2
virglrenderer-debugsource - update to 0.7.0-2
virglrenderer-devel - update to 0.7.0-2

• 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

• OpenSUSE Linux update for virglrenderer
• Out-of-bounds read in virglrenderer (Alpine package)
• openEuler update for virglrenderer