CVE-2017-5993 Information

Description

Memory leak in the vrend_renderer_init_blit_ctx function in vrend_blitter.c in virglrenderer before 0.6.0 allows local guest OS users to cause a denial of service (host memory consumption) via a large number of VIRGL_CCMD_BLIT commands.

CVSS Vector

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

Reference

http://www.openwall.com/lists/oss-security/2017/02/15/7 http://www.securityfocus.com/bid/96275 https://bugzilla.redhat.com/show_bug.cgi?id=1422438 https://cgit.freedesktop.org/virglrenderer/commit/?id=6eb13f7a2dcf391ec9e19b4c2a79e68305f63c22 https://lists.freedesktop.org/archives/virglrenderer-devel/2017-February/000145.html https://security.gentoo.org/glsa/201707-06

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

CHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

6.5