CVE-2022-26359 — XEN vulnerability

4 documents4 sources
Severity
7.8HIGHNVD
EPSS
0.1%
top 68.58%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
4
XENDebian XENDebian Linux+1 more
Timeline
PublishedApr 5
Latest updateApr 6

Description

IOMMU: RMRR (VT-d) and unity map (AMD-Vi) handling issues T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Certain PCI devices in a system might be assigned Reserved Memory Regions (specified via Reserved Memory Region Reporting, "RMRR") for Intel VT-d or Unity Mapping ranges for AMD-Vi. These are typically used for platform tasks such as legacy USB emulation. Since the precise purpose of these regions is unknown, on…

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 1.8 | Impact: 5.9

Affected Packages2 packages

▶debiandebian/xen< xen 4.16.1-1 (bookworm)
▶Debianxen/xen< 4.14.4+74-gd7b22226b5-1+3

Also affects: Debian Linux 11.0, Fedora 34, 35

Patches

Patch: www.openwall.com ↗Patch: xenbits.xen.org ↗Patch: www.openwall.com ↗

🔴Vulnerability Details

2
GHSA
GHSA-5j4q-p8r9-g32c: IOMMU: RMRR (VT-d) and unity map (AMD-Vi) handling issues T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulne↗2022-04-06
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OSV
CVE-2022-26359: IOMMU: RMRR (VT-d) and unity map (AMD-Vi) handling issues T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulne↗2022-04-05
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📋Vendor Advisories

1
Debian
CVE-2022-26359: xen - IOMMU: RMRR (VT-d) and unity map (AMD-Vi) handling issues T[his CNA information ...↗2022
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