Uncontrolled Recursion Affecting libtasn1-6 package, versions <4.10-1.1+deb9u1


0.0
high

Snyk CVSS

    Attack Complexity Low
    Availability High

    Threat Intelligence

    EPSS 1.5% (87th percentile)
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NVD
7.5 high
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Red Hat
7.5 high

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  • Snyk ID SNYK-DEBIAN9-LIBTASN16-339591
  • published 22 Jan 2018
  • disclosed 22 Jan 2018

How to fix?

Upgrade Debian:9 libtasn1-6 to version 4.10-1.1+deb9u1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libtasn1-6 package and not the libtasn1-6 package as distributed by Debian. See How to fix? for Debian:9 relevant fixed versions and status.

An issue was discovered in the _asn1_decode_simple_ber function in decoding.c in GNU Libtasn1 before 4.13. Unlimited recursion in the BER decoder leads to stack exhaustion and DoS.