CVE-2022-42319 — Missing Release of Memory after Effective Lifetime in XEN
Severity
6.5MEDIUMNVD
EPSS
0.0%
top 91.77%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedNov 1
Description
Xenstore: Guests can cause Xenstore to not free temporary memory When working on a request of a guest, xenstored might need to allocate quite large amounts of memory temporarily. This memory is freed only after the request has been finished completely. A request is regarded to be finished only after the guest has read the response message of the request from the ring page. Thus a guest not reading the response can cause xenstored to not free the temporary memory. This can result in memory shorta…
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:HExploitability: 2.0 | Impact: 4.0
Affected Packages3 packages
Also affects: Debian Linux 11.0, Fedora 35, 36, 37
Patches
🔴Vulnerability Details
2GHSA▶
GHSA-jxpc-fxw3-65cc: Xenstore: Guests can cause Xenstore to not free temporary memory When working on a request of a guest, xenstored might need to allocate quite large am↗2022-11-01
OSV▶
CVE-2022-42319: Xenstore: Guests can cause Xenstore to not free temporary memory When working on a request of a guest, xenstored might need to allocate quite large am↗2022-11-01
📋Vendor Advisories
1Debian▶
CVE-2022-42319: xen - Xenstore: Guests can cause Xenstore to not free temporary memory When working on...↗2022