Debian DLA-421-1 : openssl security update

Medium Nessus Plugin ID 88863

Synopsis

The remote Debian host is missing a security update.

Description

CVE-2015-3197: A malicious client can negotiate SSLv2 ciphers that have been disabled on the server and complete SSLv2 handshakes even if all SSLv2 ciphers have been disabled, provided that the SSLv2 protocol was not also disabled via SSL_OP_NO_SSLv2.

Additionally, when using a DHE cipher suite a new DH key will always be generated for each connection.

This will be the last security update for the squeeze version of the package. The 0.9.8 version is no longer supported and the squeeze LTS support will end soon. If you are using openssl you should upgrade to wheezy or preferably jessie. The version in those versions contain many security improvements.

Kurt Roeckx

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Upgrade the affected packages.

See Also

https://lists.debian.org/debian-lts-announce/2016/02/msg00013.html

https://packages.debian.org/source/squeeze-lts/openssl

Plugin Details

Severity: Medium

ID: 88863

File Name: debian_DLA-421.nasl

Version: 2.11

Type: local

Agent: unix

Published: 2016/02/22

Updated: 2018/07/06

Dependencies: 12634

Risk Information

Risk Factor: Medium

CVSS v2.0

Base Score: 4.3

Temporal Score: 3.2

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

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

CVSS v3.0

Base Score: 5.9

Temporal Score: 5.2

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:libcrypto0.9.8-udeb, p-cpe:/a:debian:debian_linux:libssl-dev, p-cpe:/a:debian:debian_linux:libssl0.9.8, p-cpe:/a:debian:debian_linux:libssl0.9.8-dbg, p-cpe:/a:debian:debian_linux:openssl, cpe:/o:debian:debian_linux:6.0

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: 2016/02/20

Reference Information

CVE: CVE-2015-3197