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Debian Security Advisory 3287-1

Debian Security Advisory 3287-1
Posted Jun 15, 2015
Authored by Debian | Site debian.org

Debian Linux Security Advisory 3287-1 - Multiple vulnerabilities were discovered in OpenSSL, a Secure Sockets Layer toolkit.

tags | advisory, vulnerability
systems | linux, debian
advisories | CVE-2014-8176, CVE-2015-1788, CVE-2015-1789, CVE-2015-1790, CVE-2015-1791, CVE-2015-1792, CVE-2015-4000
MD5 | 8b6a075e92de837aed96987c2264454d

Debian Security Advisory 3287-1

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- -------------------------------------------------------------------------
Debian Security Advisory DSA-3287-1 security@debian.org
https://www.debian.org/security/ Alessandro Ghedini
June 13, 2015 https://www.debian.org/security/faq
- -------------------------------------------------------------------------

Package : openssl
CVE ID : CVE-2014-8176 CVE-2015-1788 CVE-2015-1789 CVE-2015-1790
CVE-2015-1791 CVE-2015-1792 CVE-2015-4000

Multiple vulnerabilities were discovered in OpenSSL, a Secure Sockets
Layer toolkit.

CVE-2014-8176

Praveen Kariyanahalli, Ivan Fratric and Felix Groebert discovered
that an invalid memory free could be triggered when buffering DTLS
data. This could allow remote attackers to cause a denial of service
(crash) or potentially execute arbitrary code. This issue only
affected the oldstable distribution (wheezy).

CVE-2015-1788

Joseph Barr-Pixton discovered that an infinite loop could be triggered
due to incorrect handling of malformed ECParameters structures. This
could allow remote attackers to cause a denial of service.

CVE-2015-1789

Robert Swiecki and Hanno Böck discovered that the X509_cmp_time
function could read a few bytes out of bounds. This could allow remote
attackers to cause a denial of service (crash) via crafted
certificates and CRLs.

CVE-2015-1790

Michal Zalewski discovered that the PKCS#7 parsing code did not
properly handle missing content which could lead to a NULL pointer
dereference. This could allow remote attackers to cause a denial of
service (crash) via crafted ASN.1-encoded PKCS#7 blobs.

CVE-2015-1791

Emilia Käsper discovered that a race condition could occur due to
incorrect handling of NewSessionTicket in a multi-threaded client,
leading to a double free. This could allow remote attackers to cause
a denial of service (crash).

CVE-2015-1792

Johannes Bauer discovered that the CMS code could enter an infinite
loop when verifying a signedData message, if presented with an
unknown hash function OID. This could allow remote attackers to cause
a denial of service.

Additionally OpenSSL will now reject handshakes using DH parameters
shorter than 768 bits as a countermeasure against the Logjam attack
(CVE-2015-4000).

For the oldstable distribution (wheezy), these problems have been fixed
in version 1.0.1e-2+deb7u17.

For the stable distribution (jessie), these problems have been fixed in
version 1.0.1k-3+deb8u1.

For the testing distribution (stretch), these problems have been fixed
in version 1.0.2b-1.

For the unstable distribution (sid), these problems have been fixed in
version 1.0.2b-1.

We recommend that you upgrade your openssl packages.

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/

Mailing list: debian-security-announce@lists.debian.org
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