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CVE-2022-42335

UNKNOWN
Published 2023-04-25T00:00:00
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No CVSS data available

Description

x86 shadow paging arbitrary pointer dereference In environments where host assisted address translation is necessary but Hardware Assisted Paging (HAP) is unavailable, Xen will run guests in so called shadow mode. Due to too lax a check in one of the hypervisor routines used for shadow page handling it is possible for a guest with a PCI device passed through to cause the hypervisor to access an arbitrary pointer partially under guest control.

Available Exploits

No exploits available for this CVE.

Related News

No news articles found for this CVE.

Affected Products

Xen

xen

Affected Versions:

consult Xen advisory XSA-430

GitHub Security Advisories

Community-driven vulnerability intelligence from GitHub

⚠ Unreviewed HIGH

GHSA-pwx9-2gvj-242v

Advisory Details

x86 shadow paging arbitrary pointer dereference In environments where host assisted address translation is necessary but Hardware Assisted Paging (HAP) is unavailable, Xen will run guests in so called shadow mode. Due to too lax a check in one of the hypervisor routines used for shadow page handling it is possible for a guest with a PCI device passed through to cause the hypervisor to access an arbitrary pointer partially under guest control.

CVSS Scoring

CVSS Score

7.5

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References

ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2022-42335
WEB https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PSPFWSY6UOPGMADQGOGN2PAAS5LJRPTG
WEB https://lists.fedoraproject.org/archives/list/[email protected]/message/PSPFWSY6UOPGMADQGOGN2PAAS5LJRPTG
WEB https://security.gentoo.org/glsa/202402-07
WEB https://xenbits.xenproject.org/xsa/advisory-430.txt
WEB http://www.openwall.com/lists/oss-security/2023/04/25/1
WEB http://xenbits.xen.org/xsa/advisory-430.html

Advisory provided by GitHub Security Advisory Database. Published: April 25, 2023, Modified: February 4, 2024

References

https://xenbits.xenproject.org/xsa/advisory-430.txt
http://xenbits.xen.org/xsa/advisory-430.html
http://www.openwall.com/lists/oss-security/2023/04/25/1
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PSPFWSY6UOPGMADQGOGN2PAAS5LJRPTG/
https://security.gentoo.org/glsa/202402-07
Published: 2023-04-25T00:00:00
Last Modified: 2024-08-03T13:03:45.932Z
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