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CVE-2015-3622

Status Candidate

Overview

The _asn1_extract_der_octet function in lib/decoding.c in GNU Libtasn1 before 4.5 allows remote attackers to cause a denial of service (out-of-bounds heap read) via a crafted certificate.

Related Files

Red Hat Security Advisory 2017-1860-01
Posted Aug 1, 2017
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2017-1860-01 - Libtasn1 is a library that provides Abstract Syntax Notation One parsing and structures management, and Distinguished Encoding Rules encoding and decoding functions. The following packages have been upgraded to a later upstream version: libtasn1. Security Fix: A heap-based buffer overflow flaw was found in the way the libtasn1 library decoded certain DER-encoded inputs. A specially crafted DER-encoded input could cause an application using libtasn1 to perform an invalid read, causing the application to crash.

tags | advisory, overflow
systems | linux, redhat
advisories | CVE-2015-2806, CVE-2015-3622
SHA-256 | 4e1518276ab61f012581d289e98462389a2b11059b8faa634132b7d1358f0f04
Gentoo Linux Security Advisory 201509-04
Posted Sep 25, 2015
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 201509-4 - Multiple vulnerabilities have been found in libtasn1, the worst of which could lead to arbitrary code execution. Versions less than 1.4.5 are affected.

tags | advisory, arbitrary, vulnerability, code execution
systems | linux, gentoo
advisories | CVE-2015-2806, CVE-2015-3622
SHA-256 | 7409f641de00682e65c15ff139158d68c60b58fefecad508e0f36dd168033008
Debian Security Advisory 3256-1
Posted May 11, 2015
Authored by Debian | Site debian.org

Debian Linux Security Advisory 3256-1 - Hanno Boeck discovered a heap-based buffer overflow flaw in the way Libtasn1, a library to manage ASN.1 structures, decoded certain DER-encoded input. A specially crafted DER-encoded input could cause an application using the Libtasn1 library to crash, or potentially to execute arbitrary code.

tags | advisory, overflow, arbitrary
systems | linux, debian
advisories | CVE-2015-3622
SHA-256 | 8b4804fb2ec6a12eba636ba1111c4a104c007dfabd81e67ac2d772cc9729b331
Ubuntu Security Notice USN-2604-1
Posted May 11, 2015
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2604-1 - Hanno B=C3=B6ck discovered that Libtasn1 incorrectly handled certain ASN.1 data. A remote attacker could possibly exploit this with specially crafted ASN.1 data and cause applications using Libtasn1 to crash, resulting in a denial of service, or possibly execute arbitrary code.

tags | advisory, remote, denial of service, arbitrary
systems | linux, ubuntu
advisories | CVE-2015-3622
SHA-256 | 2a5e0c061702739f2a1c761d7b8bc2d7220399e8f44fb3c8f6b34fbc69a9783c
Mandriva Linux Security Advisory 2015-232
Posted May 8, 2015
Authored by Mandriva | Site mandriva.com

Mandriva Linux Security Advisory 2015-232 - A malformed certificate input could cause a heap overflow read in the DER decoding functions of Libtasn1. The heap overflow happens in the function _asn1_extract_der_octet().

tags | advisory, overflow
systems | linux, mandriva
advisories | CVE-2015-3622
SHA-256 | ec326717f181b47c6bed3f888aa55e2c20fbd5905b5a06673a291b04b2841d52
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