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Fencer Vulns
medium 5.5

CVE-2019-18391 json

A heap-based buffer overflow in the vrend_renderer_transfer_write_iov function in vrend_renderer.c in virglrenderer through 0.8.0 allows gu…

published 2019-12-23 6 y ago modified 2026-06-17 4 mo ago also EUVD-2019-8176

cvss
5.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 30%
public exploits
0
none known

Summary

A heap-based buffer overflow in the vrend_renderer_transfer_write_iov function in vrend_renderer.c in virglrenderer through 0.8.0 allows guest OS users to cause a denial of service via VIRGL_CCMD_RESOURCE_INLINE_WRITE commands.

Patch / fix

  • virglrenderer Debian 14, Debian 13, Debian 12 0.8.1-1

debian advisories DEBIAN-CVE-2019-18391

  • virglrenderer SLE Module for Server Applications 15 SP1, SLE Module for Server Applications 15 0.6.0-4.3.1
  • virglrenderer SLES for SAP 12 SP5, SLES for SAP 12 SP4, SLES for SAP 12 SP3 +15 more 0.5.0-12.3.1

suse advisories SUSE-SU-2020:0017-1SUSE-SU-2020:0016-1

  • virglrenderer openSUSE Tumbleweed 0.9.1-1.3
  • virglrenderer openSUSE Leap 15.1 0.6.0-lp151.4.3.1

opensuse advisories openSUSE-SU-2024:11499-1openSUSE-SU-2020:0058-1

  • virglrenderer Alpine 3.24, Alpine 3.23, Alpine 3.22 +11 more 0.8.1-r0

alpine advisories ALPINE-CVE-2019-18391

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2019-18391 updated cvss 5.3

virglrenderer: heap based buffer overflow in the vrend_renderer_transfer_write_iov function

  • Red Hat Enterprise Linux 8 Advanced Virtualization virglrenderer, virglrenderer-test-server
    affected: no fix available

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.36% chance of exploitation in the next 30 days, higher than 30% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 2.1 AV:L/AC:L/Au:N/C:N/I:N/A:P

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.