CVE-2018-15853
UnknownEPSS 0.53%
Last modified
CVE-2018-15853 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 0.53% chance of exploitation in the next 30 days.
Description
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.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Xkbcommon | Libxkbcommon | < 0.8.1 |
| Xkbcommon | Xkbcommon | < 0.8.1 |
| Canonical | Ubuntu Linux | 14.04 |
| Canonical | Ubuntu Linux | 16.04 |
| Canonical | Ubuntu Linux | 18.04 |
References
- https://github.com/xkbcommon/libxkbcommon/commit/1f9d1248c07cda8aaff762429c0dce146de8632aPatch, 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://github.com/xkbcommon/libxkbcommon/commit/1f9d1248c07cda8aaff762429c0dce146de8632aPatch, 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
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2018-15853?
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.
How severe is CVE-2018-15853?
Severity scoring for CVE-2018-15853 is pending analysis. The EPSS model estimates a 0.53% probability of exploitation in the next 30 days.
How do I fix CVE-2018-15853?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2018
- CVE-2018-15848An issue was discovered in portfolioCMS 1.0.5. There is CSRF…
- CVE-2018-15849An issue was discovered in portfolioCMS 1.0.5. There is CSRF…
- CVE-2018-1585IBM Rational Rhapsody Design Manager 5.0 through 5.0.2 and 6…5.4
- CVE-2018-15850An issue was discovered in REDAXO CMS 4.7.2. There is a CSRF…
- CVE-2018-15851An issue was discovered in Flexo CMS v0.1.6. There is a CSRF…
- CVE-2018-15852Technicolor TC7200.20 devices allow remote attackers to caus…
- CVE-2018-15854Unchecked NULL pointer usage in xkbcommon before 0.8.1 could…
- CVE-2018-15855Unchecked NULL pointer usage in xkbcommon before 0.8.1 could…
- CVE-2018-15856An infinite loop when reaching EOL unexpectedly in compose/p…
- CVE-2018-15857An invalid free in ExprAppendMultiKeysymList in xkbcomp/ast-…
- CVE-2018-15858Unchecked NULL pointer usage when handling invalid aliases i…
- CVE-2018-15859Unchecked NULL pointer usage when parsing invalid atoms in E…
Are you affected by CVE-2018-15853?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST