Out-of-Bounds Affecting libtasn1-6 package, versions <3.4-3ubuntu0.5


Severity

Recommended
medium

Based on Ubuntu security rating

    Threat Intelligence

    EPSS
    0.23% (62nd percentile)

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  • Snyk ID SNYK-UBUNTU1404-LIBTASN16-339578
  • published 22 May 2017
  • disclosed 22 May 2017

How to fix?

Upgrade Ubuntu:14.04 libtasn1-6 to version 3.4-3ubuntu0.5 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 Ubuntu. See How to fix? for Ubuntu:14.04 relevant fixed versions and status.

Two errors in the "asn1_find_node()" function (lib/parser_aux.c) within GnuTLS libtasn1 version 4.10 can be exploited to cause a stacked-based buffer overflow by tricking a user into processing a specially crafted assignments file via the e.g. asn1Coding utility.

CVSS Scores

version 3.1
Expand this section

NVD

8.8 high
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    Required
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    High
  • Integrity (I)
    High
  • Availability (A)
    High