CVE-2018-14599 — Off-by-one Error in Libx11

CWE-193 — Off-by-one ErrorCWE-787 — Out-of-bounds Write11 documents8 sources
Severity
9.8CRITICALNVD
EPSS
1.7%
top 17.50%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
7
X.org Libx11Canonical Ubuntu LinuxDebian Linux+4 more
Timeline
PublishedAug 24
Latest updateMay 13

Description

An issue was discovered in libX11 through 1.6.5. The function XListExtensions in ListExt.c is vulnerable to an off-by-one error caused by malicious server responses, leading to DoS or possibly unspecified other impact.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitability: 3.9 | Impact: 5.9

Affected Packages5 packages

▶Debianx.org/libx11< 2:1.6.6-1+3
▶NVDx.org/libx111.6.5

Also affects: Debian Linux 8.0, Fedora 28, Ubuntu Linux 12.04, 14.04, 16.04, 18.04

Patches

Patch: bugzilla.suse.com ↗Patch: cgit.freedesktop.org ↗Patch: bugzilla.suse.com ↗

🔴Vulnerability Details

4
GHSA
GHSA-4q9q-728x-j7v5: An issue was discovered in libX11 through 1↗2022-05-13
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OSV
libx11 vulnerabilities↗2018-08-30
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OSV
CVE-2018-14599: An issue was discovered in libX11 through 1↗2018-08-24
▶
CVEList
CVE-2018-14599: An issue was discovered in libX11 through 1↗2018-08-24
▶

📋Vendor Advisories

4
Ubuntu
libx11 vulnerabilities↗2018-08-30
▶
Ubuntu
libx11 vulnerabilities↗2018-08-30
▶
Red Hat
libX11: Off-by-one error in XListExtensions in ListExt.c↗2018-08-21
▶
Debian
CVE-2018-14599: libx11 - An issue was discovered in libX11 through 1.6.5. The function XListExtensions in...↗2018
▶

💬Community

2
Bugzilla
CVE-2018-14599 libX11: off-by-one error in XListExtensions in ListExt.c [fedora-all]↗2018-08-28
▶
Bugzilla
CVE-2018-14599 libX11: Off-by-one error in XListExtensions in ListExt.c↗2018-08-28
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CVE-2018-14599 — Off-by-one Error in X.org Libx11 | cvebase