Debian Security Advisory DSA 3287-1 (openssl - security update)

Published: 2015-06-12 22:00:00
CVE Author: NIST National Vulnerability Database

CVSS Base Vector:
AV:N/AC:L/Au:N/C:P/I:P/A:P

Solution Type:
Vendor Patch

Detection Type:
Linux Distribution Package

Affected Versions:
openssl on Debian Linux

Recommendations:
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 Linux Distribution Packages.

Summary:
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 Bck 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 Ksper 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 ).

Detection Method:
This check tests the installed software version using the apt Linux Distribution Package manager.

NIST (National Institute of Standards and Technology) NVD (National Vulnerability Database)

https://nvd.nist.gov/vuln/detail/CVE-2014-8176
https://nvd.nist.gov/vuln/detail/CVE-2015-1788
https://nvd.nist.gov/vuln/detail/CVE-2015-1789
https://nvd.nist.gov/vuln/detail/CVE-2015-1790
https://nvd.nist.gov/vuln/detail/CVE-2015-1791
https://nvd.nist.gov/vuln/detail/CVE-2015-1792
https://nvd.nist.gov/vuln/detail/CVE-2015-4000

References:

http://www.debian.org/security/2015/dsa-3287.html

Severity
High
CVSS Score
7.5
Published
2015-06-12
Modified
2019-03-18
Category
Debian Local Security Checks

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