Medium
Security advisory
An integer overflow leading to a heap-buffer overflow was found in The X Input Method (XIM) client was implemented in libX11 before version 1.6.10. As per upstream this is security relevant when setuid programs call XIM client functions while running with elevated privileges. No such programs are shipped with Red Hat Enterprise Linux.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2020-14344
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 05:29 UTC · Revision 1
Source evidence
An integer overflow leading to a heap-buffer overflow was found in The X Input Method (XIM) client was implemented in libX11 before version 1.6.10. As per upstream this is security relevant when setuid programs call XIM client functions while running with elevated privileges. No such programs are shipped with Red Hat Enterprise Linux.
osv:CVE-2020-14344
Complete source record
{
"id": "2dd1453572408f3e64074895ffeb5ee37a0c8502fa7705df804b70376d461f43",
"url": "https://osv.dev/vulnerability/CVE-2020-14344",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2020-14344",
"summary": "An integer overflow leading to a heap-buffer overflow was found in The X Input Method (XIM) client was implemented in libX11 before version 1.6.10. As per upstream this is security relevant when setuid programs call XIM client functions while running with elevated privileges. No such programs are shipped with Red Hat Enterprise Linux.",
"evidence": "osv:CVE-2020-14344",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2020-14344",
"aliases": [
"CVE-2020-14344"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/mirror/libx11",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "9949364ea761ab7efa2a9930ec7718f966a740c0"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:x.org:libx11:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "1.6.10"
}
],
"source": "CPE_RANGE"
}
]
}
}
],
"versions": [
"libX11-1.6.9",
"libX11-1.6.8",
"libX11-1.6.7",
"libX11-1.6.6",
"libX11-1.6.5",
"libX11-1.6.4",
"libX11-1.6.3",
"libX11-1.6.2",
"libX11-1.6.1",
"libX11-1.6.0",
"libX11-1.5.99.902",
"libX11-1.5.99.901",
"libX11-1.5.0",
"libX11-1.4.99.902",
"libX11-1.4.99.901",
"libX11-1.4.99.1",
"libX11-1.4.4",
"libX11-1.4.3",
"libX11-1.4.2",
"libX11-1.4.1",
"libX11-1.4.0",
"libX11-1.3.99.903",
"libX11-1.3.99.902",
"libX11-1.3.99.901",
"libX11-1.3.4",
"libX11-1.3.3",
"libX11-1.3.2",
"libX11-1.3.1",
"libX11-1.3",
"libX11-1.2.99.901",
"libX11-1.2.2",
"libX11-1.2.1",
"libX11-1.2",
"libX11-1.1.99.2",
"libX11-1.1.4",
"libX11-1.1.3",
"libX11-1.1.2",
"XORG-6_99_99_904",
"MODULAR_COPY",
"XORG-6_99_99_903",
"XORG-6_8_99_903",
"XORG-6_99_99_902",
"XORG-6_8_99_902",
"XORG-6_99_99_901",
"XORG-6_8_99_901",
"XORG-6_99_99_900",
"XORG-6_8_99_900",
"XORG-6_8_99_15",
"XORG-6_8_99_14",
"XORG-6_8_99_13",
"XORG-6_8_99_10",
"XORG-6_8_99_9",
"XORG-6_8_99_7",
"XORG-6_8_99_6",
"XORG-6_8_1",
"XORG-6_7_99_903",
"XORG-6_7_99_902",
"XORG-6_7_99_2",
"XORG-6_7_99_1",
"XACE-SELINUX-MERGE",
"XORG-MAIN"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-14344.json"
}
},
{
"ranges": [
{
"repo": "https://gitlab.freedesktop.org/xorg/lib/libx11",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "9949364ea761ab7efa2a9930ec7718f966a740c0"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:x.org:libx11:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "1.6.10"
}
],
"source": "CPE_RANGE"
}
]
}
}
],
"versions": [
"libX11-1.6.9",
"libX11-1.6.8",
"libX11-1.6.7",
"libX11-1.6.6",
"libX11-1.6.5",
"libX11-1.6.4",
"libX11-1.6.3",
"libX11-1.6.2",
"libX11-1.6.1",
"libX11-1.6.0",
"libX11-1.5.99.902",
"libX11-1.5.99.901",
"libX11-1.5.0",
"libX11-1.4.99.902",
"libX11-1.4.99.901",
"libX11-1.4.99.1",
"libX11-1.4.4",
"libX11-1.4.3",
"libX11-1.4.2",
"libX11-1.4.1",
"libX11-1.4.0",
"libX11-1.3.99.903",
"libX11-1.3.99.902",
"libX11-1.3.99.901",
"libX11-1.3.4",
"libX11-1.3.3",
"libX11-1.3.2",
"libX11-1.3.1",
"libX11-1.3",
"libX11-1.2.99.901",
"libX11-1.2.2",
"libX11-1.2.1",
"libX11-1.2",
"libX11-1.1.99.2",
"libX11-1.1.4",
"libX11-1.1.3",
"libX11-1.1.2",
"XORG-6_99_99_904",
"MODULAR_COPY",
"XORG-6_99_99_903",
"XORG-6_8_99_903",
"XORG-6_99_99_902",
"XORG-6_8_99_902",
"XORG-6_99_99_901",
"XORG-6_8_99_901",
"XORG-6_99_99_900",
"XORG-6_8_99_900",
"XORG-6_8_99_15",
"XORG-6_8_99_14",
"XORG-6_8_99_13",
"XORG-6_8_99_10",
"XORG-6_8_99_9",
"XORG-6_8_99_7",
"XORG-6_8_99_6",
"XORG-6_8_1",
"XORG-6_7_99_903",
"XORG-6_7_99_902",
"XORG-6_7_99_2",
"XORG-6_7_99_1",
"XACE-SELINUX-MERGE",
"XORG-MAIN"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-14344.json"
}
}
],
"modified": "2026-10-24T10:30:29.293078853Z",
"provider": "osv",
"references": [
"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4VDDSAYV7XGNRCXE7HCU23645MG74OFF/",
"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7AVXCQOSCAPKYYHFIJAZ6E2C7LJBTLXF/",
"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XY4H2SIEF2362AMNX5ZKWAELGU7LKFJB/",
"https://security.gentoo.org/glsa/202008-18",
"https://usn.ubuntu.com/4487-1/",
"https://usn.ubuntu.com/4487-2/",
"https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-14344",
"https://lists.x.org/archives/xorg-announce/2020-July/003050.html",
"https://www.openwall.com/lists/oss-security/2020/07/31/1"
],
"provider_metadata": {
"unresolved_ranges": [
{
"cpes": [
"cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:-:*:*:*",
"cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*",
"cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*",
"cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*",
"cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*"
],
"vendor_product": "canonical:ubuntu_linux",
"extracted_events": [
{
"range": [
{
"introduced": "12.04"
},
{
"last_affected": "12.04"
},
{
"introduced": "14.04"
},
{
"last_affected": "14.04"
},
{
"introduced": "16.04"
},
{
"last_affected": "16.04"
},
{
"introduced": "18.04"
},
{
"last_affected": "18.04"
},
{
"introduced": "20.04"
},
{
"last_affected": "20.04"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*",
"cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*",
"cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*"
],
"vendor_product": "fedoraproject:fedora",
"extracted_events": [
{
"range": [
{
"introduced": "31"
},
{
"last_affected": "31"
},
{
"introduced": "32"
},
{
"last_affected": "32"
},
{
"introduced": "33"
},
{
"last_affected": "33"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*",
"cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:*"
],
"vendor_product": "opensuse:leap",
"extracted_events": [
{
"range": [
{
"introduced": "15.1"
},
{
"last_affected": "15.1"
},
{
"introduced": "15.2"
},
{
"last_affected": "15.2"
}
],
"source": "CPE_STRING"
}
]
}
]
}
},
"related_cves": [
{
"value": "CVE-2020-14344",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 432289,
"published_at": "2020-08-05T14:15:12.42+00:00"
}