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CVE-2018-14600
An issue was discovered in libX11 through 1.6.5. The function XListExtensions in ListExt.c interprets a variable as signed instead of…
Critical9.8EPSS 9.2%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
An issue was discovered in libX11 through 1.6.5. The function XListExtensions in ListExt.c interprets a variable as signed instead of unsigned, resulting in an out-of-bounds write (of up to 128 bytes), leading to DoS or remote code execution.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | Critical9.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 9.2% · top 4.6% of all CVEs (5 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.8.
Weakness
Affected products
n/a
- affected n/a
References (11)
- USN-3758-2 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- GLSA-201811-01 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- 105177 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- https://bugzilla.suse.com/show_bug.cgi?id=1102068 (opens in a new tab)x_refsource_CONFIRMx_transferred
- [oss-security] 20180821 X.Org security advisory: August 21, 2018 (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- 1041543 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- https://cgit.freedesktop.org/xorg/lib/libX11/commit/?id=dbf72805fd9d7b1846fe9a11b46f3994bfc27fea (opens in a new tab)x_refsource_CONFIRMx_transferred
- [debian-lts-announce] 20180829 [SECURITY] [DLA 1482-1] libx11 security update (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [xorg-announce] 20180821 libX11 1.6.6 (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- USN-3758-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- RHSA-2019:2079 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
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[](https://trackcve.app/cve/CVE-2018-14600)Record last updated .