Allocation of Resources Without Limits or Throttling Affecting systemd package, versions <245.4-4ubuntu3.10


Severity

Recommended
high

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.04% (12th percentile)

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  • Snyk IDSNYK-UBUNTU2004-SYSTEMD-1320127
  • published20 Jul 2021
  • disclosed20 Jul 2021

Introduced: 20 Jul 2021

CVE-2021-33910  (opens in a new tab)
CWE-770  (opens in a new tab)

How to fix?

Upgrade Ubuntu:20.04 systemd to version 245.4-4ubuntu3.10 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream systemd package and not the systemd package as distributed by Ubuntu. See How to fix? for Ubuntu:20.04 relevant fixed versions and status.

basic/unit-name.c in systemd prior to 246.15, 247.8, 248.5, and 249.1 has a Memory Allocation with an Excessive Size Value (involving strdupa and alloca for a pathname controlled by a local attacker) that results in an operating system crash.

References

CVSS Scores

version 3.1