CVE-2017-5956

The vrend_draw_vbo function in virglrenderer before 0.6.0 allows local guest OS users to cause a denial of service (out-of-bounds array access and QEMU process crash) via vectors involving vertext_buffer_index.

Published: 2017-03-20 Last update: 2026-05-13 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2017-5956 is rated Low Risk (29.7/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.06%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2017-5956

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2023-03-07 0.95% 0.06% -0.89%
2 2022-02-04 1.55% 0.95% -0.60%
3 2021-04-14 — 1.55% —

Full EPSS history (3 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2017-5956

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.5 3.0 MEDIUM
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.8 3.6 [email protected]
2.1 2.0 LOW
AV:L/AC:L/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 3.9 2.9 [email protected]

Weakness enumeration for CVE-2017-5956

OS Trackers for CVE-2017-5956

vendor priority summary link
debian not yet assigned CVE-2017-5956 not yet assigned priority: Debian including 1 source packages (virglrenderer), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2017-5956
gentoo normal CVE-2017-5956: 1 GLSA(s) (201707-06), 1 atom(s) (media-libs/virglrenderer); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2017-5956
suse low CVE-2017-5956 severity low: SUSE including 2 source package names (libvirglrenderer0-0.5.0-11.1, virglrenderer-devel-0.5.0-11.1), 15 product×package rows across 15 product lines (SUSE Linux Enterprise Desktop 12 SP2, SUSE Linux Enterprise Desktop 12 SP3, … (15 product lines)): Fixed 15. https://www.suse.com/security/cve/CVE-2017-5956/
ubuntu medium CVE-2017-5956 medium priority: Ubuntu including 1 source packages (virglrenderer), 9 status rows across 9 suites (artful, bionic, cosmic, precise, trusty, upstream, xenial, yakkety, zesty): DNE 3, ignored 3, not-affected 2, released 1. https://ubuntu.com/security/CVE-2017-5956

Affected software / configurations for CVE-2017-5956

Vendor Product Version Raw CPE
virglrenderer_project virglrenderer <= 0.5.0 cpe:2.3:a:virglrenderer_project:virglrenderer:*:*:*:*:*:*:*:*

References for CVE-2017-5956

cvelogic Threat Intelligence