CVE - CVE-2022-33744

CVE-ID
CVE-2022-33744	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
Arm guests can cause Dom0 DoS via PV devices When mapping pages of guests on Arm, dom0 is using an rbtree to keep track of the foreign mappings. Updating of that rbtree is not always done completely with the related lock held, resulting in a small race window, which can be used by unprivileged guests via PV devices to cause inconsistencies of the rbtree. These inconsistencies can lead to Denial of Service (DoS) of dom0, e.g. by causing crashes or the inability to perform further mappings of other guests' memory pages.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
CONFIRM:http://xenbits.xen.org/xsa/advisory-406.html DEBIAN:DSA-5191 URL:https://www.debian.org/security/2022/dsa-5191 MISC:https://xenbits.xenproject.org/xsa/advisory-406.txt URL:https://xenbits.xenproject.org/xsa/advisory-406.txt MLIST:[debian-lts-announce] 20221002 [SECURITY] [DLA 3131-1] linux security update URL:https://lists.debian.org/debian-lts-announce/2022/10/msg00000.html MLIST:[oss-security] 20220705 Xen Security Advisory 406 v3 (CVE-2022-33744) - Arm guests can cause Dom0 DoS via PV devices URL:http://www.openwall.com/lists/oss-security/2022/07/05/4
Assigning CNA
Xen Project
Date Record Created
20220615	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20220615)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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