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CVE-2019-18389

25
FAUCET Score

CVE-2019-18389 is a heap-based buffer overflow in virglrenderer versions up to 0.8.0, affecting products like Debian, openSUSE, and Red Hat. This vulnerability allows a guest OS user to trigger a denial of service or potentially achieve QEMU guest-to-host escape and code execution through VIRGL_CCMD_RESOURCE_INLINE_WRITE commands. With a CVSS score of 7.8 (High), it presents a significant risk due to its low attack complexity and high impact on confidentiality, integrity, and availability. Currently, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 0.8.0CPE matchmatch criteria
cpe:2.3:a:virglrenderer_project:virglrenderer:*:*:*:*:*:*:*:*
15.1CPE matchmatch criteria
cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
10.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.44%
Probability of exploitation in next 30 days
EPSS Percentile
36.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0044 is in the 76th percentile among its peer group of 16,994 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

redhatpatch availablevia nvd_reference
View patch
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 8 Advanced VirtualizationFixed in: virglrenderer

Vendor Advisories (1)

redhatCVE-2019-18389Important

virglrenderer: heap buffer overflow in the vrend_renderer_transfer_write_iov function

Oct 8, 2019

References

lists.opensuse.org / opensuse-security-announce/2020-01/msg00028.html
Mailing ListThird Party Advisory
access.redhat.com / security/cve/cve-2019-18389
Third Party Advisory
bugzilla.redhat.com / show_bug.cgi
Issue TrackingPatchThird Party Advisory
gitlab.freedesktop.org / virgl/virglrenderer/commit/cbc8d8b75be360236cada63784046688aeb6d921
PatchThird Party Advisory
gitlab.freedesktop.org / virgl/virglrenderer/merge_requests/314/diffs
PatchThird Party Advisory
lists.debian.org / debian-lts-announce/2022/12/msg00017.html
Mailing ListThird Party Advisory