CVE catalog
CVE-2018-15853
x11-xkb-utils: CVE-2018-15853
- Severity
- Low · CVSS 3.3
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.54% · Oct 22, 2026
Endless recursion exists in xkbcomp/expr.c in xkbcommon and libxkbcommon before 0.8.1, which could be used by local attackers to crash xkbcommon users by supplying a crafted keymap file that triggers boolean negation.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | libxkbcommon | sid | 1.13.1-1 | fixed |
| Debian | libxkbcommon | forky | 1.13.1-1 | fixed |
| Debian | libxkbcommon | trixie | 1.7.0-2 | fixed |
| Debian | libxkbcommon | bookworm | 1.5.0-1 | fixed |
| Debian | x11-xkb-utils | sid | 7.7+9 | vulnerable |
| Debian | x11-xkb-utils | forky | 7.7+9 | vulnerable |
| Debian | x11-xkb-utils | trixie | 7.7+9 | vulnerable |
| Debian | x11-xkb-utils | bookworm | 7.7+7 | vulnerable |
| Alpine | xkbcomp | 3.18 | 1.5.0-r0 | fixed |
| Alpine | xkbcomp | 3.19 | 1.5.0-r0 | fixed |
| Alpine | xkbcomp | 3.20 | 1.5.0-r0 | fixed |
| Alpine | xkbcomp | 3.21 | 1.5.0-r0 | fixed |
| Alpine | xkbcomp | 3.22 | 1.5.0-r0 | fixed |
| Alpine | xkbcomp | 3.23 | 1.5.0-r0 | fixed |
| Alpine | xkbcomp | 3.24 | 1.5.0-r0 | fixed |
| Ubuntu | libxkbcommon | 14.04 | 0.3.1-1 | vulnerable |
| Ubuntu | libxkbcommon | 14.04 | 0.3.1-2 | vulnerable |
| Ubuntu | libxkbcommon | 14.04 | 0.4.1-0ubuntu1 | vulnerable |
| Ubuntu | libxkbcommon | 14.04 | 0.4.1-0ubuntu1.1 | fixed |
| Ubuntu | libxkbcommon | 16.04 | 0.5.0-1ubuntu2 | vulnerable |
| Ubuntu | libxkbcommon | 16.04 | 0.5.0-1ubuntu2.1 | fixed |
| Ubuntu | libxkbcommon | 18.04 | 0.7.1-2 | vulnerable |
| Ubuntu | libxkbcommon | 18.04 | 0.8.0-1 | vulnerable |
| Ubuntu | libxkbcommon | 18.04 | 0.8.0-1ubuntu0.1 | fixed |
| Ubuntu | libxkbcommon | 14.04 | 0.3.1-1 | vulnerable |
| Ubuntu | libxkbcommon | 14.04 | 0.3.1-2 | vulnerable |
| Ubuntu | libxkbcommon | 14.04 | 0.4.1-0ubuntu1 | vulnerable |
| Ubuntu | libxkbcommon | 14.04 | 0.4.1-0ubuntu1.1 | fixed |
| Ubuntu | libxkbcommon | 16.04 | 0.5.0-1ubuntu2 | vulnerable |
| Ubuntu | libxkbcommon | 16.04 | 0.5.0-1ubuntu2.1 | fixed |
| Ubuntu | libxkbcommon | 18.04 | 0.7.1-2 | vulnerable |
| Ubuntu | libxkbcommon | 18.04 | 0.8.0-1 | vulnerable |
| Ubuntu | libxkbcommon | 18.04 | 0.8.0-1ubuntu0.1 | fixed |
| Opensuse | xkbcomp | leap 16.0 | 1.4.7-160000.3.1 | fixed |
| Opensuse | xkbcomp | tumbleweed | 1.5.0-1.1 | fixed |
| Suse | xkbcomp | linux enterprise server 16.0 | 1.4.7-160000.3.1 | fixed |
| Suse | xkbcomp | linux enterprise server for sap applications 16.0 | 1.4.7-160000.3.1 | fixed |
| Suse | xkbcomp | linux enterprise module for basesystem 15 sp6 | 1.4.1-150000.3.6.1 | fixed |
| Suse | xkbcomp | linux enterprise module for basesystem 15 sp7 | 1.4.1-150000.3.6.1 | fixed |
| Opensuse | xkbcomp | leap 15.6 | 1.4.1-150000.3.6.1 | fixed |
| Suse | libxkbcommon | linux enterprise module for basesystem 15 | 0.8.2-3.3.1 | fixed |
| Suse | xkbcomp | linux enterprise server ltss extended security 12 sp5 | 1.2.4-11.3.1 | fixed |
| Suse | libxkbcommon | linux enterprise software development kit 12 sp5 | 0.6.1-9.3.1 | fixed |
| Suse | libxkbcommon | linux enterprise server 12 sp5 | 0.6.1-9.3.1 | fixed |
| Suse | libxkbcommon | linux enterprise server for sap applications 12 sp5 | 0.6.1-9.3.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | libxkbcommon | source | sid | 0.8.2-1 | low | Not reported | [907302] |
| Debian | libxkbcommon | source | forky | 0.8.2-1 | low | Not reported | [907302] |
| Debian | libxkbcommon | source | trixie | 0.8.2-1 | low | Not reported | [907302] |
| Debian | libxkbcommon | source | bookworm | 0.8.2-1 | low | Not reported | [907302] |
| Debian | x11-xkb-utils | source | sid | (unfixed) | unimportant | Not reported | [1122063] |
| Debian | x11-xkb-utils | source | forky | (unfixed) | unimportant | Not reported | [1122063] |
| Debian | x11-xkb-utils | source | trixie | (unfixed) | unimportant | Not reported | [1122063] |
| Debian | x11-xkb-utils | source | bookworm | (unfixed) | unimportant | Not reported | [1122063] |
| Alpine | xkbcomp | apk | 3.18 | 1.5.0-r0 | Not reported | ALPINE-CVE-2018-15853 | Not reported |
| Alpine | xkbcomp | apk | 3.19 | 1.5.0-r0 | Not reported | ALPINE-CVE-2018-15853 | Not reported |
| Alpine | xkbcomp | apk | 3.20 | 1.5.0-r0 | Not reported | ALPINE-CVE-2018-15853 | Not reported |
| Alpine | xkbcomp | apk | 3.21 | 1.5.0-r0 | Not reported | ALPINE-CVE-2018-15853 | Not reported |
| Alpine | xkbcomp | apk | 3.22 | 1.5.0-r0 | Not reported | ALPINE-CVE-2018-15853 | Not reported |
| Alpine | xkbcomp | apk | 3.23 | 1.5.0-r0 | Not reported | ALPINE-CVE-2018-15853 | Not reported |
| Alpine | xkbcomp | apk | 3.24 | 1.5.0-r0 | Not reported | ALPINE-CVE-2018-15853 | Not reported |
| Ubuntu | libxkbcommon | deb | 14.04 | 0.4.1-0ubuntu1.1 | Not reported | UBUNTU-CVE-2018-15853 | Not reported |
| Ubuntu | libxkbcommon | deb | 16.04 | 0.5.0-1ubuntu2.1 | Not reported | UBUNTU-CVE-2018-15853 | Not reported |
| Ubuntu | libxkbcommon | deb | 18.04 | 0.8.0-1ubuntu0.1 | Not reported | UBUNTU-CVE-2018-15853 | Not reported |
| Ubuntu | libxkbcommon | deb | 14.04 | 0.4.1-0ubuntu1.1 | Not reported | USN-3786-1 | Not reported |
| Ubuntu | libxkbcommon | deb | 16.04 | 0.5.0-1ubuntu2.1 | Not reported | USN-3786-1 | Not reported |
| Ubuntu | libxkbcommon | deb | 18.04 | 0.8.0-1ubuntu0.1 | Not reported | USN-3786-2 | Not reported |
| Opensuse | xkbcomp | rpm | leap 16.0 | 1.4.7-160000.3.1 | Not reported | OPENSUSE-SU-2026:20123-1 | Not reported |
| Opensuse | xkbcomp | rpm | tumbleweed | 1.5.0-1.1 | Not reported | OPENSUSE-SU-2025:15815-1 | Not reported |
| Suse | xkbcomp | rpm | linux enterprise server 16.0 | 1.4.7-160000.3.1 | Not reported | SUSE-SU-2026:20186-1 | Not reported |
| Suse | xkbcomp | rpm | linux enterprise server for sap applications 16.0 | 1.4.7-160000.3.1 | Not reported | SUSE-SU-2026:20186-1 | Not reported |
| Suse | xkbcomp | rpm | linux enterprise module for basesystem 15 sp6 | 1.4.1-150000.3.6.1 | Not reported | SUSE-SU-2025:4426-1 | Not reported |
| Suse | xkbcomp | rpm | linux enterprise module for basesystem 15 sp7 | 1.4.1-150000.3.6.1 | Not reported | SUSE-SU-2025:4426-1 | Not reported |
| Opensuse | xkbcomp | rpm | leap 15.6 | 1.4.1-150000.3.6.1 | Not reported | SUSE-SU-2025:4426-1 | Not reported |
| Suse | libxkbcommon | rpm | linux enterprise module for basesystem 15 | 0.8.2-3.3.1 | Not reported | SUSE-SU-2018:3685-1 | Not reported |
| Suse | xkbcomp | rpm | linux enterprise server ltss extended security 12 sp5 | 1.2.4-11.3.1 | Not reported | SUSE-SU-2025:4407-1 | Not reported |
| Suse | libxkbcommon | rpm | linux enterprise software development kit 12 sp5 | 0.6.1-9.3.1 | Not reported | SUSE-SU-2024:0037-1 | Not reported |
| Suse | libxkbcommon | rpm | linux enterprise server 12 sp5 | 0.6.1-9.3.1 | Not reported | SUSE-SU-2024:0037-1 | Not reported |
| Suse | libxkbcommon | rpm | linux enterprise server for sap applications 12 sp5 | 0.6.1-9.3.1 | Not reported | SUSE-SU-2024:0037-1 | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [x11-xkb-utils]Affected
Details (2)
7.7+7· amd64 · bookwormAffected
dsa · x11-xkb-utils · debian · bookworm; dsa · x11-xkb-utils · debian · 12
7.7+7· arm64 · bookwormAffected
dsa · x11-xkb-utils · debian · bookworm; dsa · x11-xkb-utils · debian · 12
- [libxkbcommon0]Fixed
Source package: [libxkbcommon]
Details (2)
1.5.0-1· amd64 · bookwormFixed · Fixed:
0.8.2-1dsa · libxkbcommon · debian · bookworm; dsa · libxkbcommon · debian · 12
1.5.0-1· arm64 · bookwormFixed · Fixed:
0.8.2-1dsa · libxkbcommon · debian · bookworm; dsa · libxkbcommon · debian · 12
- [libxkbcommon-dev]Fixed
Source package: [libxkbcommon]
Details (2)
1.5.0-1· amd64 · bookwormFixed · Fixed:
0.8.2-1dsa · libxkbcommon · debian · bookworm; dsa · libxkbcommon · debian · 12
1.5.0-1· arm64 · bookwormFixed · Fixed:
0.8.2-1dsa · libxkbcommon · debian · bookworm; dsa · libxkbcommon · debian · 12
- [libxkbcommon-doc]Fixed
Source package: [libxkbcommon]
Details (2)
1.5.0-1· all · bookwormFixed · Fixed:
0.8.2-1dsa · libxkbcommon · debian · bookworm; dsa · libxkbcommon · debian · 12
1.5.0-1· all · bookwormFixed · Fixed:
0.8.2-1dsa · libxkbcommon · debian · bookworm; dsa · libxkbcommon · debian · 12
- [libxkbcommon-tools]Fixed
Source package: [libxkbcommon]
Details (2)
1.5.0-1· amd64 · bookwormFixed · Fixed:
0.8.2-1dsa · libxkbcommon · debian · bookworm; dsa · libxkbcommon · debian · 12
1.5.0-1· arm64 · bookwormFixed · Fixed:
0.8.2-1dsa · libxkbcommon · debian · bookworm; dsa · libxkbcommon · debian · 12
- [libxkbcommon-x11-0]Fixed
Source package: [libxkbcommon]
Details (2)
1.5.0-1· amd64 · bookwormFixed · Fixed:
0.8.2-1dsa · libxkbcommon · debian · bookworm; dsa · libxkbcommon · debian · 12
1.5.0-1· arm64 · bookwormFixed · Fixed:
0.8.2-1dsa · libxkbcommon · debian · bookworm; dsa · libxkbcommon · debian · 12
- [libxkbcommon-x11-dev]Fixed
Source package: [libxkbcommon]
Details (2)
1.5.0-1· amd64 · bookwormFixed · Fixed:
0.8.2-1dsa · libxkbcommon · debian · bookworm; dsa · libxkbcommon · debian · 12
1.5.0-1· arm64 · bookwormFixed · Fixed:
0.8.2-1dsa · libxkbcommon · debian · bookworm; dsa · libxkbcommon · debian · 12
- [libxkbregistry0]Fixed
Source package: [libxkbcommon]
Details (2)
1.5.0-1· amd64 · bookwormFixed · Fixed:
0.8.2-1dsa · libxkbcommon · debian · bookworm; dsa · libxkbcommon · debian · 12
1.5.0-1· arm64 · bookwormFixed · Fixed:
0.8.2-1dsa · libxkbcommon · debian · bookworm; dsa · libxkbcommon · debian · 12
- [libxkbregistry-dev]Fixed
Source package: [libxkbcommon]
Details (2)
1.5.0-1· amd64 · bookwormFixed · Fixed:
0.8.2-1dsa · libxkbcommon · debian · bookworm; dsa · libxkbcommon · debian · 12
1.5.0-1· arm64 · bookwormFixed · Fixed:
0.8.2-1dsa · libxkbcommon · debian · bookworm; dsa · libxkbcommon · debian · 12
[Debian 13 (Trixie)]
- [x11-xkb-utils]Affected
Details (2)
7.7+9· amd64 · trixieAffected
dsa · x11-xkb-utils · debian · 13
7.7+9· arm64 · trixieAffected
dsa · x11-xkb-utils · debian · 13
- [libxkbcommon0]Fixed
Source package: [libxkbcommon]
Details (4)
1.7.0-2· amd64 · trixieFixed · Fixed:
0.8.2-1dsa · libxkbcommon · debian · 13
1.7.0-2· arm64 · trixieFixed · Fixed:
0.8.2-1dsa · libxkbcommon · debian · 13
1.13.1-1~bpo13+1· amd64 · trixie-backportsFixed · Fixed:
0.8.2-1dsa · libxkbcommon · debian · 13
1.13.1-1~bpo13+1· arm64 · trixie-backportsFixed · Fixed:
0.8.2-1dsa · libxkbcommon · debian · 13
- [libxkbcommon-dev]Fixed
Source package: [libxkbcommon]
Details (4)
1.7.0-2· amd64 · trixieFixed · Fixed:
0.8.2-1dsa · libxkbcommon · debian · 13
1.7.0-2· arm64 · trixieFixed · Fixed:
0.8.2-1dsa · libxkbcommon · debian · 13
1.13.1-1~bpo13+1· amd64 · trixie-backportsFixed · Fixed:
0.8.2-1dsa · libxkbcommon · debian · 13
1.13.1-1~bpo13+1· arm64 · trixie-backportsFixed · Fixed:
0.8.2-1dsa · libxkbcommon · debian · 13
- [libxkbcommon-doc]Fixed
Source package: [libxkbcommon]
Details (4)
1.7.0-2· all · trixieFixed · Fixed:
0.8.2-1dsa · libxkbcommon · debian · 13
1.7.0-2· all · trixieFixed · Fixed:
0.8.2-1dsa · libxkbcommon · debian · 13
1.13.1-1~bpo13+1· all · trixie-backportsFixed · Fixed:
0.8.2-1dsa · libxkbcommon · debian · 13
1.13.1-1~bpo13+1· all · trixie-backportsFixed · Fixed:
0.8.2-1dsa · libxkbcommon · debian · 13
- [libxkbcommon-tools]Fixed
Source package: [libxkbcommon]
Details (4)
1.7.0-2· amd64 · trixieFixed · Fixed:
0.8.2-1dsa · libxkbcommon · debian · 13
1.7.0-2· arm64 · trixieFixed · Fixed:
0.8.2-1dsa · libxkbcommon · debian · 13
1.13.1-1~bpo13+1· amd64 · trixie-backportsFixed · Fixed:
0.8.2-1dsa · libxkbcommon · debian · 13
1.13.1-1~bpo13+1· arm64 · trixie-backportsFixed · Fixed:
0.8.2-1dsa · libxkbcommon · debian · 13
- [libxkbcommon-x11-0]Fixed
Source package: [libxkbcommon]
Details (4)
1.7.0-2· amd64 · trixieFixed · Fixed:
0.8.2-1dsa · libxkbcommon · debian · 13
1.7.0-2· arm64 · trixieFixed · Fixed:
0.8.2-1dsa · libxkbcommon · debian · 13
1.13.1-1~bpo13+1· amd64 · trixie-backportsFixed · Fixed:
0.8.2-1dsa · libxkbcommon · debian · 13
1.13.1-1~bpo13+1· arm64 · trixie-backportsFixed · Fixed:
0.8.2-1dsa · libxkbcommon · debian · 13
- [libxkbcommon-x11-dev]Fixed
Source package: [libxkbcommon]
Details (4)
1.7.0-2· amd64 · trixieFixed · Fixed:
0.8.2-1dsa · libxkbcommon · debian · 13
1.7.0-2· arm64 · trixieFixed · Fixed:
0.8.2-1dsa · libxkbcommon · debian · 13
1.13.1-1~bpo13+1· amd64 · trixie-backportsFixed · Fixed:
0.8.2-1dsa · libxkbcommon · debian · 13
1.13.1-1~bpo13+1· arm64 · trixie-backportsFixed · Fixed:
0.8.2-1dsa · libxkbcommon · debian · 13
- [libxkbregistry0]Fixed
Source package: [libxkbcommon]
Details (4)
1.7.0-2· amd64 · trixieFixed · Fixed:
0.8.2-1dsa · libxkbcommon · debian · 13
1.7.0-2· arm64 · trixieFixed · Fixed:
0.8.2-1dsa · libxkbcommon · debian · 13
1.13.1-1~bpo13+1· amd64 · trixie-backportsFixed · Fixed:
0.8.2-1dsa · libxkbcommon · debian · 13
1.13.1-1~bpo13+1· arm64 · trixie-backportsFixed · Fixed:
0.8.2-1dsa · libxkbcommon · debian · 13
- [libxkbregistry-dev]Fixed
Source package: [libxkbcommon]
Details (4)
1.7.0-2· amd64 · trixieFixed · Fixed:
0.8.2-1dsa · libxkbcommon · debian · 13
1.7.0-2· arm64 · trixieFixed · Fixed:
0.8.2-1dsa · libxkbcommon · debian · 13
1.13.1-1~bpo13+1· amd64 · trixie-backportsFixed · Fixed:
0.8.2-1dsa · libxkbcommon · debian · 13
1.13.1-1~bpo13+1· arm64 · trixie-backportsFixed · Fixed:
0.8.2-1dsa · libxkbcommon · debian · 13
[openSUSE Tumbleweed]
- [xkbcomp-devel]Unknown
Source package: [xkbcomp]
Details (1)
1.5.0-1.5· x86_64 · tumbleweedUnknown · Fixed:
1.5.0-1.1Version impact unknown
dsa · xkbcomp · opensuse · tumbleweed
- [xkbcomp]Fixed
Source package: [xkbcomp]
Details (1)
1.5.0-1.5· x86_64 · tumbleweedFixed · Fixed:
1.5.0-1.1dsa · xkbcomp · opensuse · tumbleweed
Observed:
References
- [https://access.redhat.com/errata/RHSA-2019:2079]
- [https://ftp.suse.com/pub/projects/security/]
- [https://osv.dev/vulnerability/ALPINE-CVE-2018-15853]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2018-15853]
- [https://osv.dev/vulnerability/SUSE-SU-2018:3685-1]
- [https://osv.dev/vulnerability/SUSE-SU-2024:0037-1]
- [https://osv.dev/vulnerability/SUSE-SU-2025:4407-1]
- [https://osv.dev/vulnerability/SUSE-SU-2025:4426-1]
- [https://osv.dev/vulnerability/SUSE-SU-2026:20186-1]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2018-15853]
- [https://osv.dev/vulnerability/USN-3786-1]
- [https://osv.dev/vulnerability/USN-3786-2]
- [https://osv.dev/vulnerability/openSUSE-SU-2025:15815-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2026:20123-1]
- [https://security-tracker.debian.org/tracker/CVE-2018-15853]
- [https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-1730.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]