Debian DSA-2833-1 : openssl - several vulnerabilities

Medium Nessus Plugin ID 71781

Synopsis

The remote Debian host is missing a security-related update.

Description

Multiple security issues have been fixed in OpenSSL: The TLS 1.2 support was susceptible to denial of service and retransmission of DTLS messages was fixed. In addition this update disables the insecure Dual_EC_DRBG algorithm (which was unused anyway, see http://marc.info/?l=openssl-announce&m=138747119822324&w=2 for further information) and no longer uses the RdRand feature available on some Intel CPUs as a sole source of entropy unless explicitly requested.

Solution

Upgrade the openssl packages.

For the stable distribution (wheezy), these problems have been fixed in version 1.0.1e-2+deb7u1.

See Also

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=732754

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=732710

https://marc.info/?l=openssl-announce&m=138747119822324&w=2

https://packages.debian.org/source/wheezy/openssl

https://www.debian.org/security/2014/dsa-2833

Plugin Details

Severity: Medium

ID: 71781

File Name: debian_DSA-2833.nasl

Version: 1.9

Type: local

Agent: unix

Published: 2014/01/02

Updated: 2018/11/19

Dependencies: 12634

Risk Information

Risk Factor: Medium

CVSS v2.0

Base Score: 5.8

Temporal Score: 4.3

Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:P/A:P

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:openssl, cpe:/o:debian:debian_linux:7.0

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Available: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2014/01/01

Reference Information

CVE: CVE-2013-6449, CVE-2013-6450

BID: 64530

DSA: 2833