PT-2019-4893 · Xen+1 · Xen+1

Andrew Cooper + 1 · Publicado 2019-07-10 · Atualizado 2023-02-03 · CVE-2019-17346

Positive Technologies (AI Summary)

CVSS v3.1

8.8

Alta

Vetor base

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

Name of the Vulnerable Software and Affected Versions Xen versions prior to 4.12

Description The issue is related to an incompatibility between Process Context Identifiers (PCID) and TLB flushes, allowing x86 PV guest OS users to cause a denial of service or gain privileges. This is due to insufficient input validation in the Xen hypervisor.

Recommendations For Xen versions prior to 4.12, update to version 4.12 or later to resolve the issue. At the moment, there is no information about other versions that contain a fix for this vulnerability.

Correção

DoS

RCE

Enumeração de Fraquezas

CWE-20

Identificadores relacionados

BDU:2020-01485

CVE-2019-17346

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 · 70

• https://suse.com/security/cve/CVE-2019-17340 · Nota
• https://bugzilla.suse.com/1027519 · Nota
• https://suse.com/security/cve/CVE-2019-17345 · Nota
• http://xenbits.xen.org/xsa/advisory-292.html · Aviso do Fabricante
• https://osv.dev/vulnerability/CVE-2019-17346 · Aviso do Fabricante
• https://bugzilla.suse.com/1127400 · 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://bdu.fstec.ru/vul/2020-01485 · Nota de Segurança