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Gentoo Linux Security Advisory GLSA 201703-05 |
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https://security.gentoo.org/ |
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Severity: Normal |
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Title: GNU Libtasn1: Denial of Service |
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Date: March 28, 2017 |
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Bugs: #579748 |
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ID: 201703-05 |
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Synopsis |
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======== |
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|
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A vulnerability in Libtasn1 allows remote attackers to cause a Denial |
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of Service condition. |
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Background |
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========== |
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|
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A library that provides Abstract Syntax Notation One (ASN.1, as |
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specified by the X.680 ITU-T recommendation) parsing and structures |
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management, and Distinguished Encoding Rules (DER, as per X.690) |
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encoding and decoding functions. |
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|
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Affected packages |
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================= |
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|
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------------------------------------------------------------------- |
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Package / Vulnerable / Unaffected |
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------------------------------------------------------------------- |
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1 dev-libs/libtasn1 < 4.8 >= 4.8 |
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Description |
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=========== |
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|
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Libtasn1 does not correctly handle certain malformed DER certificates. |
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Impact |
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====== |
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|
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A remote attacker could entice a user or automated system to process a |
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specially crafted certificate using Libtasn1, resulting in a Denial of |
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Service condition. |
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Workaround |
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========== |
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There is no known workaround at this time. |
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Resolution |
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========== |
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All Libtasn1 users should upgrade to the latest version: |
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=dev-libs/libtasn1-4.8" |
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|
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References |
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========== |
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[ 1 ] CVE-2016-4008 |
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http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-4008 |
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|
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Availability |
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============ |
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This GLSA and any updates to it are available for viewing at |
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the Gentoo Security Website: |
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https://security.gentoo.org/glsa/201703-05 |
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Concerns? |
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========= |
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Security is a primary focus of Gentoo Linux and ensuring the |
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confidentiality and security of our users' machines is of utmost |
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importance to us. Any security concerns should be addressed to |
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security@g.o or alternatively, you may file a bug at |
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https://bugs.gentoo.org. |
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License |
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======= |
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Copyright 2017 Gentoo Foundation, Inc; referenced text |
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belongs to its owner(s). |
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The contents of this document are licensed under the |
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Creative Commons - Attribution / Share Alike license. |
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http://creativecommons.org/licenses/by-sa/2.5 |
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