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Improper Input Validation Affecting bind-export-libs package, versions <32:9.11.36-8.el8_8.2

0.0
high

Snyk CVSS

    Attack Complexity Low
    Availability High

    Threat Intelligence

    EPSS 0.15% (52nd percentile)
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NVD
7.5 high
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SUSE
7.5 high
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Red Hat
7.5 high

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  • Snyk ID SNYK-CENTOS8-BINDEXPORTLIBS-5913511
  • published 21 Sep 2023
  • disclosed 20 Sep 2023
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Introduced: 20 Sep 2023

CVE-2023-3341 Open this link in a new tab
CWE-20 Open this link in a new tab

How to fix?

Upgrade Centos:8 bind-export-libs to version 32:9.11.36-8.el8_8.2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream bind-export-libs package and not the bind-export-libs package as distributed by Centos. See How to fix? for Centos:8 relevant fixed versions and status.

The code that processes control channel messages sent to named calls certain functions recursively during packet parsing. Recursion depth is only limited by the maximum accepted packet size; depending on the environment, this may cause the packet-parsing code to run out of available stack memory, causing named to terminate unexpectedly. Since each incoming control channel message is fully parsed before its contents are authenticated, exploiting this flaw does not require the attacker to hold a valid RNDC key; only network access to the control channel's configured TCP port is necessary. This issue affects BIND 9 versions 9.2.0 through 9.16.43, 9.18.0 through 9.18.18, 9.19.0 through 9.19.16, 9.9.3-S1 through 9.16.43-S1, and 9.18.0-S1 through 9.18.18-S1.