Memory Leak Affecting bind9 package, versions <1:9.16.33-1~deb11u1


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.26% (67th percentile)

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  • Snyk IDSNYK-DEBIAN11-BIND9-3027844
  • published21 Sept 2022
  • disclosed21 Sept 2022

Introduced: 21 Sep 2022

CVE-2022-38177  (opens in a new tab)
CWE-401  (opens in a new tab)

How to fix?

Upgrade Debian:11 bind9 to version 1:9.16.33-1~deb11u1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream bind9 package and not the bind9 package as distributed by Debian. See How to fix? for Debian:11 relevant fixed versions and status.

By spoofing the target resolver with responses that have a malformed ECDSA signature, an attacker can trigger a small memory leak. It is possible to gradually erode available memory to the point where named crashes for lack of resources.

CVSS Scores

version 3.1