CVE & CISA-KEV Catalog

CVE-2017-13723

HIGH
7.8
CVSS v3
NVD

Description

In X.Org Server (aka xserver and xorg-server) before 1.19.4, a local attacker authenticated to the X server could overflow a global buffer, causing crashes of the X server or potentially other problems by injecting large or malformed XKB related atoms and accessing them via xkbcomp.

CWE-119Buffer Overflow

How to fix

Remediation Available
xorg-serverDebian
Fixed in:2:1.19.4-1CVE-2017-13723
Fixed in:2:1.19.4-1CVE-2017-13723
Fixed in:2:1.19.4-1CVE-2017-13723
Fixed in:2:1.19.4-1CVE-2017-13723
xorg-serverUbuntu
Fixed in:2:1.15.1-0ubuntu2.10USN-3453-1
Fixed in:2:1.18.4-0ubuntu0.6USN-3453-1
xorg-server-hwe-16.04Ubuntu
Fixed in:2:1.19.3-1ubuntu1~16.04.3USN-3453-1
xorg-server-lts-xenialUbuntu
Fixed in:2:1.18.3-1ubuntu2.3~trusty3USN-3453-1
xserver-xorg-coreUbuntu
Fixed in:2:1.15.1-0ubuntu2.10USN-3453-1
Fixed in:2:1.18.4-0ubuntu0.6USN-3453-1
xserver-xorg-core-hwe-16.04Ubuntu
Fixed in:2:1.19.3-1ubuntu1~16.04.3USN-3453-1
xserver-xorg-core-lts-xenialUbuntu
Fixed in:2:1.18.3-1ubuntu2.3~trusty3USN-3453-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

0.44%probability of exploitation in 30 days
36thpercentile

Low risk: more likely to be exploited than 36% of all known CVEs.

References

Vendor Advisory1
Other references1

Related Vulnerabilities

Other CWE-119 (Buffer Overflow) vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2023-4966Critical9.4100%KEV + RansomFix
CVE-2017-11882High7.8100%KEV + Ransom-
CVE-2020-0796Critical10.0100%KEV + Ransom-
CVE-2008-4250Critical9.899%KEV-
CVE-2017-15944Critical9.898%KEVFix
CVE-2015-0014High10.097%--
Embed a live status badge for CVE-2017-13723
CVE-2017-13723 severity badge

Markdown

[![CVE-2017-13723](https://tridentstack.com/cve/badge/CVE-2017-13723.svg)](https://tridentstack.com/cve/CVE-2017-13723)

HTML

<a href="https://tridentstack.com/cve/CVE-2017-13723"><img src="https://tridentstack.com/cve/badge/CVE-2017-13723.svg" alt="CVE-2017-13723"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-13.