Allocation of Resources Without Limits or Throttling Affecting linux-4.19 package, versions <4.19.181-1~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-LINUX419-1089624
  • published6 Mar 2021
  • disclosed5 Mar 2021

Introduced: 5 Mar 2021

CVE-2021-28038  (opens in a new tab)
CWE-770  (opens in a new tab)

How to fix?

Upgrade Debian:9 linux-4.19 to version 4.19.181-1~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 the Linux kernel through 5.11.3, as used with Xen PV. A certain part of the netback driver lacks necessary treatment of errors such as failed memory allocations (as a result of changes to the handling of grant mapping errors). A host OS denial of service may occur during misbehavior of a networking frontend driver. NOTE: this issue exists because of an incomplete fix for CVE-2021-26931.

CVSS Base Scores

version 3.1