PT-2019-5144 · Xen+1 · Xen+1

Jan Beulich · Publicado 2019-10-07 · Atualizado 2023-02-03 · CVE-2019-17348

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Média

Vetor base

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

Name of the Vulnerable Software and Affected Versions Xen versions prior to 4.11.x

Description The issue is related to an incompatibility between Process Context Identifiers (PCID) and shadow-pagetable switching, allowing x86 PV guest OS users to cause a denial of service. This is due to a lack of input validation mechanism in the Xen hypervisor.

Recommendations For Xen versions prior to 4.11.x, update to a version that addresses the incompatibility between PCID and shadow-pagetable switching to prevent denial of service attacks.

Correção

DoS

RCE

Enumeração de Fraquezas

CWE-20

Identificadores relacionados

BDU:2020-01811

CVE-2019-17348

DSA-4602-1

SUSE-RU-2019:2767-1

SUSE-SU-2019:14199-1

SUSE-SU-2019:2753-1

SUSE-SU-2019:2769-1

SUSE-SU-2019:2783-1

SUSE-SU-2019_14199-1

Produtos afetados

Suse

Xen

Referências · 71

• https://suse.com/security/cve/CVE-2019-17340 · Nota
• https://bugzilla.suse.com/1027519 · Nota
• https://suse.com/security/cve/CVE-2019-17345 · Nota
• https://bdu.fstec.ru/vul/2020-01811 · Nota de Segurança
• https://bugzilla.suse.com/1127400 · Nota
• https://access.redhat.com/security/cve/CVE-2019-17348 · Nota
• https://osv.dev/vulnerability/SUSE-RU-2019:2767-1 · Aviso do Fabricante
• https://bugzilla.suse.com/1126198 · Nota
• https://bugzilla.suse.com/1145652 · Nota
• https://wiki.astralinux.ru/astra-linux-se16-bulletin-20200327SE16 · Aviso do Fabricante
• https://bugzilla.suse.com/1131811 · Nota
• https://suse.com/security/cve/CVE-2018-12130 · Nota
• https://osv.dev/vulnerability/SUSE-SU-2019:2753-1 · Aviso do Fabricante
• https://suse.com/security/cve/CVE-2019-17347 · Nota
• https://bugzilla.suse.com/1126196 · Nota