PT-2018-17819 · Freebsd · Freebsd

Publicado 2018-04-04 · Atualizado 2018-05-24 · CVE-2018-6917

Positive Technologies (AI Summary)

CVSS v3.1

7.5

Alta

Vetor base

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

Name of the Vulnerable Software and Affected Versions FreeBSD versions prior to 11.1-STABLE FreeBSD versions prior to 11.1-RELEASE-p9 FreeBSD versions prior to 10.4-STABLE FreeBSD versions prior to 10.4-RELEASE-p8 FreeBSD versions prior to 10.3-RELEASE-p28

Description The issue arises from insufficient validation of user-provided font parameters, resulting in an integer overflow. This overflow leads to the use of arbitrary kernel memory as glyph data, potentially allowing unprivileged users to access privileged kernel data.

Recommendations For versions prior to 11.1-STABLE, update to 11.1-STABLE or later. For versions prior to 11.1-RELEASE-p9, update to 11.1-RELEASE-p9 or later. For versions prior to 10.4-STABLE, update to 10.4-STABLE or later. For versions prior to 10.4-RELEASE-p8, update to 10.4-RELEASE-p8 or later. For versions prior to 10.3-RELEASE-p28, update to 10.3-RELEASE-p28 or later.

Correção

Integer Overflow

Enumeração de Fraquezas

CWE-190

Identificadores relacionados

CVE-2018-6917

FREEBSD-SA-18_04

Produtos afetados

Freebsd

Referências · 5

• http://securityfocus.com/bid/103668 · Nota
• https://nvd.nist.gov/vuln/detail/CVE-2018-6917 · Nota de Segurança
• https://security.freebsd.org/advisories/FreeBSD-SA-18:04.vt.asc · Aviso do Fabricante
• https://osv.dev/vulnerability/CVE-2018-6917 · Aviso do Fabricante
• http://securitytracker.com/id/1040629 · Nota