HighFix available
libx11 — security advisory
An integer overflow vulnerability leading to a double-free was found in libX11. This flaw allows a local privileged attacker to cause an application compiled with libX11 to crash, or in some cases, result in arbitrary code execution. The highest threat from this flaw is to confidentiality, integrity as well as system availability.
- Products
- libx11
- Affected versions
- Not specified
- Fixed versions
- 1.6.12-r0
- CVEs
- CVE-2020-14363
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 12:02 UTC · Revision 1
Source evidence
An integer overflow vulnerability leading to a double-free was found in libX11. This flaw allows a local privileged attacker to cause an application compiled with libX11 to crash, or in some cases, result in arbitrary code execution. The highest threat from this flaw is to confidentiality, integrity as well as system availability.
osv:ALPINE-CVE-2020-14363
libx11
Fixed versions: 1.6.12-r0
libx11
Fixed versions: 1.6.12-r0
libx11
Fixed versions: 1.6.12-r0
libx11
Fixed versions: 1.6.12-r0
libx11
Fixed versions: 1.6.12-r0
libx11
Fixed versions: 1.6.12-r0
libx11
Fixed versions: 1.6.12-r0
libx11
Fixed versions: 1.6.12-r0
libx11
Fixed versions: 1.6.12-r0
libx11
Fixed versions: 1.6.12-r0
libx11
Fixed versions: 1.6.12-r0
libx11
Fixed versions: 1.6.12-r0
libx11
Fixed versions: 1.6.12-r0
libx11
Fixed versions: 1.6.12-r0
libx11
Fixed versions: 1.6.12-r0
libx11
Fixed versions: 1.6.12-r0
Complete source record
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"modified": "2026-10-26T11:17:55.124749351Z",
"provider": "osv",
"upstream": [
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"source_id": "core-osv",
"document_id": 450415,
"published_at": "2020-09-11T18:15:13.38+00:00"
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