Out-of-Bounds Affecting linux-4.19 package, versions <4.19.171-2~deb9u1


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.05% (17th percentile)

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  • Snyk IDSNYK-DEBIAN9-LINUX419-1073744
  • published16 Dec 2020
  • disclosed15 Dec 2020

Introduced: 15 Dec 2020

CVE-2020-29568  (opens in a new tab)
CWE-119  (opens in a new tab)

How to fix?

Upgrade Debian:9 linux-4.19 to version 4.19.171-2~deb9u1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream linux-4.19 package and not the linux-4.19 package as distributed by Debian. See How to fix? for Debian:9 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