Allocation of Resources Without Limits or Throttling Affecting kernel-default-livepatch package, versions <4.12.14-150.66.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.35% (27th percentile)

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  • Snyk IDSNYK-SLES150-KERNELDEFAULTLIVEPATCH-2696684
  • published14 Apr 2022
  • disclosed11 Feb 2021

Introduced: 11 Feb 2021

CVE-2020-29568  (opens in a new tab)
CWE-770  (opens in a new tab)

How to fix?

Upgrade SLES:15.0 kernel-default-livepatch to version 4.12.14-150.66.1 or higher.

NVD Description

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

An issue was discovered in Xen through 4.14.x. Some OSes (such as Linux, FreeBSD, and NetBSD) are processing watch events using a single thread. If the events are received faster than the thread is able to handle, they will get queued. As the queue is unbounded, a guest may be able to trigger an OOM in the backend. All systems with a FreeBSD, Linux, or NetBSD (any version) dom0 are vulnerable.

CVSS Base Scores

version 3.1