xorg-x11-server before 1.19.5 was vulnerable to integer overflow in (S)ProcXIBarrierReleasePointer functions allowing malicious X client to cause X server to crash or possibly execute arbitrary code.
CVE-2017-12179
Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2022-05-13. NVD baseline CVSS 9.8; sources differ by 0.0.
- High severity, but no confirmed exploitation yet
A fix is available — apply it.
- CVSS v3
- 9.8
- EG Score
- 9.8(medium)
- EPSS
- 90.3%
- KEV
- Not listed
Published
January 24, 2018
Last Modified
August 29, 2025
Advisory Details (4)
Auto-updated Jun 21, 2026[SECURITY] [DSA 4000-1] xorg-server security update
https://www.debian.org/security/2017/dsa-4000X.Org Server: Multiple vulnerabilities (GLSA 201711-05) — Gentoo security
https://security.gentoo.org/glsa/201711-05Xi: integer overflow and unvalidated length in (S)ProcXIBarrierReleasePointer - xorg/xserver - X server (mirrored from https://gitlab.freedesktop.org/xorg/xserver)
https://cgit.freedesktop.org/xorg/xserver/commit/?id=d088e3c1286b548a58e62afdc70bb40981cdb9e81509220 – (CVE-2017-12179) CVE-2017-12179 xorg-x11-server: Integer overflow and unvalidated length in (S)ProcXIBarrierReleasePointer
https://bugzilla.redhat.com/show_bug.cgi?id=1509220Patch Availability(1)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| ubuntu | xwayland-hwe-16.04 (2:1.19.3-1ubuntu1~16.04.4) @ xenial | 2026-05-28 | ubuntu |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Weakness Classification(2)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
All Vendor Advisories
(1)
Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.
Data Freshness Timeline
(refreshed 13× in last 7d / 40× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-22 14:04 UTCEPSS rescore
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- 2026-05-28 12:11 UTCEG score recompute
- 2026-05-28 12:11 UTCVendor advisory
- 2026-05-28 12:11 UTCGHSA enrichment
- 2026-05-27 13:38 UTCEPSS rescore
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- 2026-05-26 16:01 UTCOSV refresh
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Frequently asked(5)
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Dependency Blast Radius
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