Release of Invalid Pointer or Reference Affecting xen-devel package, versions <4.10.4_40-150000.3.84.1


Severity

Recommended
0.0
high
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.05% (16th percentile)

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  • Snyk IDSNYK-SLES150-XENDEVEL-3111955
  • published10 Nov 2022
  • disclosed9 Nov 2022

Introduced: 9 Nov 2022

CVE-2022-42309  (opens in a new tab)
CWE-763  (opens in a new tab)

How to fix?

Upgrade SLES:15.0 xen-devel 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-devel package and not the xen-devel package as distributed by SLES. See How to fix? for SLES:15.0 relevant fixed versions and status.

Xenstore: Guests can crash xenstored Due to a bug in the fix of XSA-115 a malicious guest can cause xenstored to use a wrong pointer during node creation in an error path, resulting in a crash of xenstored or a memory corruption in xenstored causing further damage. Entering the error path can be controlled by the guest e.g. by exceeding the quota value of maximum nodes per domain.

CVSS Scores

version 3.1