Reachable Assertion Affecting bind package, versions <9.12.1_p2-r0


Severity

Recommended
0.0
high
0
10

Snyk's Security Team recommends NVD's CVSS assessment

    Threat Intelligence

    EPSS
    0.95% (84th percentile)

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  • Snyk ID SNYK-ALPINE311-BIND-544687
  • published 27 Jun 2018
  • disclosed 16 Jan 2019

How to fix?

Upgrade Alpine:3.11 bind to version 9.12.1_p2-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream bind package and not the bind package as distributed by Alpine. See How to fix? for Alpine:3.11 relevant fixed versions and status.

A problem with the implementation of the new serve-stale feature in BIND 9.12 can lead to an assertion failure in rbtdb.c, even when stale-answer-enable is off. Additionally, problematic interaction between the serve-stale feature and NSEC aggressive negative caching can in some cases cause undesirable behavior from named, such as a recursion loop or excessive logging. Deliberate exploitation of this condition could cause operational problems depending on the particular manifestation -- either degradation or denial of service. Affects BIND 9.12.0 and 9.12.1.