NULL Pointer Dereference Affecting libtasn1-6 package, versions <4.10-1.1+deb9u1


0.0
high

Snyk CVSS

    Attack Complexity Low
    Availability High

    Threat Intelligence

    EPSS 1.91% (89th percentile)
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NVD
7.5 high
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Red Hat
3.3 low
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SUSE
5.9 medium

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  • Snyk ID SNYK-DEBIAN9-LIBTASN16-339623
  • published 2 Jul 2017
  • disclosed 2 Jul 2017

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.

The _asn1_check_identifier function in GNU Libtasn1 through 4.12 causes a NULL pointer dereference and crash when reading crafted input that triggers assignment of a NULL value within an asn1_node structure. It may lead to a remote denial of service attack.