Out-of-bounds Write Affecting linux-4.19 package, versions <4.19.181-1~deb9u1


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.12% (48th percentile)

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  • Snyk IDSNYK-DEBIAN9-LINUX419-1089625
  • published6 Mar 2021
  • disclosed7 Mar 2021

Introduced: 6 Mar 2021

CVE-2021-27365  (opens in a new tab)
CWE-787  (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. Certain iSCSI data structures do not have appropriate length constraints or checks, and can exceed the PAGE_SIZE value. An unprivileged user can send a Netlink message that is associated with iSCSI, and has a length up to the maximum length of a Netlink message.

CVSS Base Scores

version 3.1