Fedora 28 update for libxkbcommon



| Updated: 2025-04-24
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2018-15853
CWE-ID CWE-20
Exploitation vector Local
Public exploit N/A
Vulnerable software
 Fedora
Operating systems & Components / Operating system

libxkbcommon
Operating systems & Components / Operating system package or component

Vendor Fedoraproject

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Input validation error

EUVDB-ID: #VU15753

Risk: Low

CVSSv4.0: 1.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2018-15853

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a local attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to endless recursion exists in xkbcomp/expr.c during insufficient validation of user-supplied input. A local attacker can supply a specially crafted keymap file, trigger boolean negation and cause the application to crash.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Fedora: 28

libxkbcommon: before 0.8.2-1.fc28

CPE2.3 External links

https://bodhi.fedoraproject.org/updates/FEDORA-2018-4295467df0


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



###SIDEBAR###