CVE-2022-42335
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | xen |
| Product | xen |
| Published | Apr 25, 2023 |
| Last Updated | Aug 3, 2024 |
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Affected Versions
Xen / xen
All versions affected References
xenbits.xenproject.org: https://xenbits.xenproject.org/xsa/advisory-430.txt xenbits.xen.org: http://xenbits.xen.org/xsa/advisory-430.html openwall.com: http://www.openwall.com/lists/oss-security/2023/04/25/1 lists.fedoraproject.org: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PSPFWSY6UOPGMADQGOGN2PAAS5LJRPTG/ security.gentoo.org: https://security.gentoo.org/glsa/202402-07
Credits
{'credit_data': {'description': {'description_data': [{'lang': 'eng', 'value': 'This issue was discovered by Roger Pau Monné of XenServer.'}]}}}