Memory Leak Affecting xen-libs package, versions <4.10.4_40-150000.3.84.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.05% (16th percentile)

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  • Snyk IDSNYK-SLES150-XENLIBS-3112076
  • published10 Nov 2022
  • disclosed9 Nov 2022

Introduced: 9 Nov 2022

CVE-2022-42319  (opens in a new tab)
CWE-401  (opens in a new tab)

How to fix?

Upgrade SLES:15.0 xen-libs to version 4.10.4_40-150000.3.84.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream xen-libs package and not the xen-libs package as distributed by SLES. See How to fix? for SLES:15.0 relevant fixed versions and status.

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 shortages causing Denial of Service (DoS) of xenstored.

CVSS Scores

version 3.1