PT-2017-16813 · Virgl+2 · Virglrenderer+2

Li Qiang · Published 2017-03-15 · Updated 2024-06-15 · CVE-2017-5993

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions virglrenderer versions prior to 0.6.0

Description The issue is related to a memory leak in the vrend renderer init blit ctx function, located in vrend blitter.c. This leak can be triggered by local guest OS users, allowing them to cause a denial of service by consuming host memory. The memory leak is exploited via a large number of VIRGL CCMD BLIT commands.

Recommendations For versions prior to 0.6.0, update to version 0.6.0 or later to resolve the issue. As a temporary workaround, consider restricting the number of VIRGL CCMD BLIT commands to minimize the risk of exploitation.

Fix

DoS

Missing Release of Resource after Effective Lifetime

Weakness Enumeration

CWE-772

Related Identifiers

ALT-PU-2017-1538

CVE-2017-5993

OPENSUSE-SU-2024:11499-1

SUSE-SU-2017:0798-1

Affected Products

Alt Linux

Suse

Virglrenderer

References · 61

• http://openwall.com/lists/oss-security/2017/02/15/7 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2017-5993 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5956 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-6210 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-6209 · Security Note
• https://ubuntu.com/security/CVE-2017-5993 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5580 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5937 · Security Note
• https://cgit.freedesktop.org/virglrenderer/commit/?id=6eb13f7a2dcf391ec9e19b4c2a79e68305f63c22 · Patch
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5994 · Security Note
• https://cve.org/CVERecord?id=CVE-2017-5993 · Security Note
• https://errata.altlinux.org/ALT-PU-2017-1538 · Vendor Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=1422438 · Patch
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-6317 · Security Note
• https://security.gentoo.org/glsa/201707-06 · Vendor Advisory