CVE-2023-34323 — NULL Pointer Dereference in XEN
Severity
5.5MEDIUMNVD
EPSS
0.1%
top 75.04%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedJan 5
Description
When a transaction is committed, C Xenstored will first check
the quota is correct before attempting to commit any nodes. It would
be possible that accounting is temporarily negative if a node has
been removed outside of the transaction.
Unfortunately, some versions of C Xenstored are assuming that the
quota cannot be negative and are using assert() to confirm it. This
will lead to C Xenstored crash when tools are built without -DNDEBUG
(this is the default).
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 1.8 | Impact: 3.6
Affected Packages4 packages
Patches
🔴Vulnerability Details
3OSV▶
CVE-2023-34323: When a transaction is committed, C Xenstored will first check the quota is correct before attempting to commit any nodes↗2024-01-05
OSV▶
CVE-2023-34323: When a transaction is committed, C Xenstored will first check
the quota is correct before attempting to commit any nodes↗2024-01-05
GHSA▶
GHSA-85fq-cwc3-mp4q: When a transaction is committed, C Xenstored will first check
the quota is correct before attempting to commit any nodes↗2024-01-05
📋Vendor Advisories
1Debian▶
CVE-2023-34323: xen - When a transaction is committed, C Xenstored will first check the quota is corre...↗2023