CVE-2018-15857

HighCVSS 7.8/10Last modified Jun 17, 2026

Description

An invalid free in ExprAppendMultiKeysymList in xkbcomp/ast-build.c in xkbcommon before 0.8.1 could be used by local attackers to crash xkbcommon keymap parsers or possibly have unspecified other impact by supplying a crafted keymap file.

Metrics

CVSS 3.0 7.8/10CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-416

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

https://access.redhat.com/errata/RHSA-2019:2079
https://github.com/xkbcommon/libxkbcommon/commit/c1e5ac16e77a21f87bdf3bc4dea61b037a17dddbPatch, Third Party Advisory
https://lists.freedesktop.org/archives/wayland-devel/2018-August/039232.htmlMailing List, Patch, Third Party Advisory
https://security.gentoo.org/glsa/201810-05Third Party Advisory
https://usn.ubuntu.com/3786-1/Third Party Advisory
https://usn.ubuntu.com/3786-2/Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:2079
https://github.com/xkbcommon/libxkbcommon/commit/c1e5ac16e77a21f87bdf3bc4dea61b037a17dddbPatch, Third Party Advisory
https://lists.freedesktop.org/archives/wayland-devel/2018-August/039232.htmlMailing List, Patch, Third Party Advisory
https://security.gentoo.org/glsa/201810-05Third Party Advisory
https://usn.ubuntu.com/3786-1/Third Party Advisory
https://usn.ubuntu.com/3786-2/Third Party Advisory

Timeline

Published: Aug 25, 2018
Last modified: Jun 17, 2026
NVD status: Modified

Related CVEs from 2018

CVE-2018-158585.5Unchecked NULL pointer usage when handling invalid aliases in CopyKeyAliasesToKeymap in xkbcomp/keycodes.c in xkbcommon before 0.8.1 could b CVE-2018-158595.5Unchecked NULL pointer usage when parsing invalid atoms in ExprResolveLhs in xkbcomp/expr.c in xkbcommon before 0.8.2 could be used by local CVE-2018-158615.5Unchecked NULL pointer usage in ExprResolveLhs in xkbcomp/expr.c in xkbcommon before 0.8.2 could be used by local attackers to crash (NULL p CVE-2018-158625.5Unchecked NULL pointer usage in LookupModMask in xkbcomp/expr.c in xkbcommon before 0.8.2 could be used by local attackers to crash (NULL po CVE-2018-158635.5Unchecked NULL pointer usage in ResolveStateAndPredicate in xkbcomp/compat.c in xkbcommon before 0.8.2 could be used by local attackers to c CVE-2018-158645.5Unchecked NULL pointer usage in resolve_keysym in xkbcomp/parser.y in xkbcommon before 0.8.2 could be used by local attackers to crash (NULL CVE-2018-158657.8The Pulse Secure Desktop (macOS) has a Privilege Escalation Vulnerability.CVE-2018-158689.8SQL injection vulnerability in ChronoScan version 1.5.4.3 and earlier allows an unauthenticated attacker to execute arbitrary SQL commands v CVE-2018-158695.3An Amazon Web Services (AWS) developer who does not specify the --owners flag when describing images via AWS CLI, and therefore not properly CVE-2018-15874.3IBM Rational Rhapsody Design Manager 5.0 through 5.0.2 and 6.0 through 6.0.5 and IBM Rational Software Architect Design Manager 5.0 through CVE-2018-158706.5An invalid memory address dereference was discovered in decompileGETVARIABLE in libming 0.4.8 before 2018-03-12. The vulnerability causes a CVE-2018-158716.5An invalid memory address dereference was discovered in decompileSingleArgBuiltInFunctionCall in libming 0.4.8 before 2018-03-12. The vulner