UBUNTU-CVE-2022-42321
Dashboard / Vulnerabilities / UBUNTU-CVE-2022-42321
Summary:
Details: Xenstore: Guests can crash xenstored via exhausting the stack Xenstored is using recursion for some Xenstore operations (e.g. for deleting a sub-tree of Xenstore nodes). With sufficiently deep nesting levels this can result in stack exhaustion on xenstored, leading to a crash of xenstored.
References: https://ubuntu.com/security/CVE-2022-42321, https://xenbits.xen.org/xsa/advisory-418.html, https://xenbits.xenproject.org/xsa/advisory-418.txt, http://xenbits.xen.org/xsa/advisory-418.html, http://www.openwall.com/lists/oss-security/2022/11/01/8, https://www.cve.org/CVERecord?id=CVE-2022-42321
Affected packages
Package
Name: xen
Purl: pkg:deb/ubuntu/xen?arch=source&distro=xenial
Affected ranges
Type: ECOSYSTEM
Events:
Introduced- 0
Fixed -None
Affected versions
4.5.1-0ubuntu1
4.5.1-0ubuntu2
Common Vulnerability Scoring System
Attack Vector
Network
Adjacent
Local
Physical
Privileges Required
None
Low
High
User Interaction
None
Required
Scope
Unchanged
Changed
Confidentiality
None
Low
High
Integrity
None
Low
High
Availability
None
Low
High
