MEDIUM
CVE-2017-5956
CWE-125Published: March 20, 2017· Updated: Jun 17, 2026
5.5
CVSS v3.1
Official Description
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.
Technical Analysis
CVE-2017-5956 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
A successful exploit results in availability disruption (denial of service), with a CVSS base score of 5.5.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected Vendors & Products
virglrenderer_project1 product(s)
virglrenderer
Source: NVD CPE · 1 total CPE entries
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
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Official Patches & Advisories
All References (10)
→
http://www.openwall.com/lists/oss-security/2017/02/13/2Mailing List · Patch · Third Party Advisory
→
http://www.securityfocus.com/bid/96187Third Party Advisory · VDB Entry
→
https://cgit.freedesktop.org/virglrenderer/commit/?id=a5ac49940c40ae415eac0cf912eac7070b4ba95dIssue Tracking · Patch · Third Party Advisory
→
https://lists.freedesktop.org/archives/virglrenderer-devel/2017-February/000145.htmlPatch · Third Party Advisory
→
http://www.openwall.com/lists/oss-security/2017/02/13/2Mailing List · Patch · Third Party Advisory
→
http://www.securityfocus.com/bid/96187Third Party Advisory · VDB Entry
→
https://cgit.freedesktop.org/virglrenderer/commit/?id=a5ac49940c40ae415eac0cf912eac7070b4ba95dIssue Tracking · Patch · Third Party Advisory
→
https://lists.freedesktop.org/archives/virglrenderer-devel/2017-February/000145.htmlPatch · Third Party Advisory
Quick Facts
CVE IDCVE-2017-5956
CVSS Score5.5 / 10
SeverityMEDIUM
WeaknessCWE-125
CISA KEVNo
Affected1 vendor(s)
PublishedMar 20, 2017
Related CVEs (CWE-125)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2017-5956 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.