CVE-2022-23034

Katalog CVE

CVSS 5.5 · Medium EPSS 0,34%

Kerentanan Integer Underflow (Wrap or Wraparound) pada xen, fedoraproject fedora +1 lainnya. Skor CVSS 3.1 5.5 (Medium) menurut NVD.

Deskripsi (NVD)

A PV guest could DoS Xen while unmapping a grant To address XSA-380, reference counting was introduced for grant mappings for the case where a PV guest would have the IOMMU enabled. PV guests can request two forms of mappings. When both are in use for any individual mapping, unmapping of such a mapping can be requested in two steps. The reference count for such a mapping would then mistakenly be decremented twice. Underflow of the counters gets detected, resulting in the triggering of a hypervisor bug check.

Rincian

Terbit di NVD

25 Januari 2022

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

5.5 (Medium), sumber NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-191: Integer Underflow (Wrap or Wraparound)

EPSS (30 hari)

0,34% peluang dieksploitasi; lebih tinggi dari 25,2% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://xenbits.xenproject.org/xsa/advisory-394.txt patch · advisory vendor
• http://www.openwall.com/lists/oss-security/2022/01/25/3 mailing list · advisory pihak ketiga
• https://security.gentoo.org/glsa/202208-23 advisory pihak ketiga
• https://www.debian.org/security/2022/dsa-5117 advisory pihak ketiga
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OMR6UBGJW6JKN...