PT-2018-13245 · Xkbcommon+4 · Xkbcommon+4

CVE-2018-15855 · Publicado 2018-08-25 · Atualizado 2024-01-05

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Média

Vetor base

AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions xkbcommon versions prior to 0.8.1

Description The issue arises from unchecked NULL pointer usage in the xkbcommon parser, which can be exploited by local attackers to cause a crash due to a NULL pointer dereference. This can occur when a crafted keymap file is supplied, specifically mishandling the XkbFile for an xkb geometry section.

Recommendations For versions prior to 0.8.1, update to version 0.8.1 or later to resolve the issue. As a temporary workaround, consider restricting the use of crafted keymap files to minimize the risk of exploitation.

Correção

NULL Pointer Dereference

Enumeração de Fraquezas

CWE-476

Identificadores relacionados

CESA-2019_2079

CVE-2018-15855

MGASA-2018-0369

OPENSUSE-SU-2018_3802-1

RHSA-2019:2079

RHSA-2019_2079

SUSE-SU-2018:3685-1

SUSE-SU-2024:0037-1

USN-3786-1

USN-3786-2

Produtos afetados

Centos

Red Hat

Suse

Ubuntu

Xkbcommon

Referências · 48

• https://github.com/xkbcommon/libxkbcommon/commit/917636b1d0d70205a13f89062b95e3a0fc31d4ff · Correção
• https://ubuntu.com/security/CVE-2018-15857 · Aviso do Fabricante
• https://suse.com/security/cve/CVE-2018-15859 · Nota
• https://security.gentoo.org/glsa/201810-05 · Aviso do Fabricante
• https://cve.org/CVERecord?id=CVE-2018-15855 · Nota de Segurança
• https://ubuntu.com/security/CVE-2018-15859 · Aviso do Fabricante
• https://linux.oracle.com/errata/ELSA-2019-2079.html · Aviso do Fabricante
• https://ubuntu.com/security/CVE-2018-15861 · Aviso do Fabricante
• https://osv.dev/vulnerability/MGASA-2018-0369 · Aviso do Fabricante
• https://suse.com/security/cve/CVE-2018-15863 · Nota
• https://suse.com/security/cve/CVE-2018-15853 · Nota
• https://usn.ubuntu.com/3786-1 · Aviso do Fabricante
• https://osv.dev/vulnerability/CVE-2018-15855 · Aviso do Fabricante
• https://ubuntu.com/security/CVE-2018-15856 · Aviso do Fabricante
• https://suse.com/security/cve/CVE-2018-15858 · Nota