PT-2018-13248 · Xkbcommon+3 · Xkbcommon+3

CVE-2018-15858 · Publicado 2018-08-09 · 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 when handling invalid aliases in the CopyKeyAliasesToKeymap function in xkbcomp/keycodes.c. This could be exploited by local attackers to crash the xkbcommon parser by supplying a crafted keymap file, resulting in a NULL pointer dereference.

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

ALT-PU-2018-2114

CVE-2018-15858

MGASA-2018-0369

OPENSUSE-SU-2018_3802-1

SUSE-SU-2018:3685-1

SUSE-SU-2024:0037-1

USN-3786-1

USN-3786-2

Produtos afetados

Alt Linux

Suse

Ubuntu

Xkbcommon

Referências · 46

• https://github.com/xkbcommon/libxkbcommon/commit/badb428e63387140720f22486b3acbd3d738859f · 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://ubuntu.com/security/CVE-2018-15859 · 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://ubuntu.com/security/CVE-2018-15856 · Aviso do Fabricante
• https://suse.com/security/cve/CVE-2018-15858 · Nota
• https://suse.com/security/cve/CVE-2018-15857 · Nota
• https://ubuntu.com/security/CVE-2018-15853 · Aviso do Fabricante
• https://nvd.nist.gov/vuln/detail/CVE-2018-15858 · Nota de Segurança