5.5 CVE-2022-42326

Patch

 

Xenstore: Guests can create arbitrary number of nodes via transactions T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] In case a node has been created in a transaction and it is later deleted in the same transaction, the transaction will be terminated with an error. As this error is encountered only when handling the deleted node at transaction finalization, the transaction will have been performed partially and without updating the accounting information. This will enable a malicious guest to create arbitrary number of nodes.
https://nvd.nist.gov/vuln/detail/CVE-2022-42326

Categories

CWE-401 : Missing Release of Memory after Effective Lifetime
This is often triggered by improper handling of malformed data or unexpectedly interrupted sessions. In some languages, developers are responsible for tracking memory allocation and releasing the memory. If there are no more pointers or references to the memory, then it can no longer be tracked and identified for release.

References

CONFIRM Patch

DEBIAN

DSA-5272
Third Party Advisory

FEDORA

FEDORA-2022-07438e12df
Mailing List Third Party Advisory
FEDORA-2022-99af00f60e
Mailing List Third Party Advisory
FEDORA-2022-9f51d13fa3
Mailing List Third Party Advisory

MISC Patch

_MLIST Patch


 

CPE

cpe start end
Configuration 1
cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:* >= 4.9.0
Configuration 2
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*

Patch

Url
http://xenbits.xen.org/xsa/advisory-421.html
https://xenbits.xenproject.org/xsa/advisory-421.txt
[oss-security] 20221101 Xen Security Advisory 421 v2 (CVE-2022-42325,CVE-2022-42326) - Xenstore: Guests can create arbitrary number of nodes via transactions

Exploits

Exploit-db.com
id description date
No known exploits
Other (github, ...)
Url
No known exploits

CAPEC

id description severity
No entry

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