PT-2019-4437 · Linux+1 · Linux Kernel+1

Mao Wenan · Publicado 2019-09-18 · Atualizado 2023-01-17 · CVE-2019-18680

Positive Technologies (AI Summary)

CVSS v2.0

7.8

Alta

Vetor base

AV:N/AC:L/Au:N/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 4.4.195

Description The issue is related to a NULL pointer dereference in the rds tcp kill sock() function, which can cause denial of service. This can be exploited by a remote attacker to disrupt service.

Recommendations For Linux kernel versions prior to 4.4.195, update to version 4.4.195 or later to resolve the issue. As a temporary workaround, consider restricting access to the rds tcp kill sock() function until a patch is available.

Exploit

Correção

DoS

NULL Pointer Dereference

Enumeração de Fraquezas

CWE-476

Identificadores relacionados

BDU:2020-00194

CVE-2019-18680

SUSE-SU-2019:2984-1

SUSE-SU-2019:3379-1

SUSE-SU-2020:2491-1

SUSE-SU-2020:2497-1

Produtos afetados

Linux Kernel

Suse

Referências · 201

• 🔥 https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.195 · Exploit
• 🔥 https://lkml.org/lkml/2019/9/18/337 · Exploit
• https://github.com/torvalds/linux/commit/91573ae4aed0a49660abdad4d42f2a0db995ee5e · Correção
• https://suse.com/security/cve/CVE-2019-19531 · Nota
• https://suse.com/security/cve/CVE-2019-18660 · Nota
• https://bugzilla.suse.com/1092497 · Nota
• https://suse.com/security/cve/CVE-2019-16233 · Nota
• https://bugzilla.suse.com/1173963 · Nota
• https://bugzilla.suse.com/1155897 · Nota
• https://bdu.fstec.ru/vul/2020-00194 · Nota de Segurança
• https://bugzilla.suse.com/1150457 · Nota
• https://suse.com/security/cve/CVE-2019-9506 · Nota
• https://ubuntu.com/security/CVE-2019-18680 · Aviso do Fabricante
• https://suse.com/security/cve/CVE-2019-0155 · Nota
• https://bugzilla.suse.com/1119465 · Nota