PT-2023-30240 · Xen+1 · Xen+1

Michal Orzel · Publicado 2023-12-12 · Atualizado 2024-02-15 · CVE-2023-46837

Positive Technologies (AI Summary)

CVSS v3.1

3.3

Baixa

Vetor base

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

Name of the Vulnerable Software and Affected Versions Xen (affected versions not specified)

Description The issue arises from the arithmetics in the cache cleaning and invalidation helpers overflowing, which can result in skipping the cache cleaning/invalidation. This means there is no guarantee that all writes will reach memory. The problem is related to allocating guest memory and ensuring writes have reached memory before handing over the page to a guest. A malicious guest may be able to read sensitive data from memory that previously belonged to another guest. Only Arm 32-bit systems are vulnerable.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Buffer Overflow

Enumeração de Fraquezas

CWE-119

Identificadores relacionados

CVE-2023-46837

Produtos afetados

Debian

Xen

Referências · 17

• https://osv.dev/vulnerability/UBUNTU-CVE-2023-46837 · Aviso do Fabricante
• https://xenbits.xenproject.org/xsa/advisory-447.html · Aviso do Fabricante
• https://lists.fedoraproject.org/archives/list/[e-mail]/message/JFVKWYQFRUU3CAS53THTUKXEOUDWI42G · Aviso do Fabricante
• https://security.alpinelinux.org/vuln/CVE-2023-46837 · Nota
• https://cve.org/CVERecord?id=CVE-2023-46837 · Nota de Segurança
• https://osv.dev/vulnerability/CVE-2023-46837 · Aviso do Fabricante
• http://xenbits.xen.org/xsa/advisory-447.html · Nota
• https://osv.dev/vulnerability/DEBIAN-CVE-2023-46837 · Aviso do Fabricante
• https://twitter.com/VulmonFeeds/status/1734554447441801353 · Publicação no Twitter
• https://security-tracker.debian.org/tracker/CVE-2023-46837 · Aviso do Fabricante
• https://t.me/cvenotify/71454 · Publicação no Telegram
• https://ubuntu.com/security/CVE-2023-46837 · Aviso do Fabricante
• https://nvd.nist.gov/vuln/detail/CVE-2023-46837 · Nota de Segurança
• https://twitter.com/oss_security/status/1734581458272997650 · Publicação no Twitter
• https://osv.dev/vulnerability/ALPINE-CVE-2023-46837 · Aviso do Fabricante