Debian DSA-3773-1 : openssl - security update

Medium Nessus Plugin ID 96842

Synopsis

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

Description

Several vulnerabilities were discovered in OpenSSL :

- CVE-2016-7056 A local timing attack was discovered against ECDSA P-256.

- CVE-2016-8610 It was discovered that no limit was imposed on alert packets during an SSL handshake.

- CVE-2017-3731 Robert Swiecki discovered that the RC4-MD5 cipher when running on 32 bit systems could be forced into an out-of-bounds read, resulting in denial of service.

Solution

Upgrade the openssl packages.

For the stable distribution (jessie), these problems have been fixed in version 1.0.1t-1+deb8u6.

See Also

https://security-tracker.debian.org/tracker/CVE-2016-7056

https://security-tracker.debian.org/tracker/CVE-2016-8610

https://security-tracker.debian.org/tracker/CVE-2017-3731

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

https://www.debian.org/security/2017/dsa-3773

Plugin Details

Severity: Medium

ID: 96842

File Name: debian_DSA-3773.nasl

Version: 3.10

Type: local

Agent: unix

Published: 2017/01/30

Updated: 2018/11/10

Dependencies: 12634

Risk Information

Risk Factor: Medium

CVSS v2.0

Base Score: 5

Temporal Score: 3.7

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

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

CVSS v3.0

Base Score: 7.5

Temporal Score: 6.5

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

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:openssl, cpe:/o:debian:debian_linux:8.0

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: 2017/01/27

Reference Information

CVE: CVE-2016-7056, CVE-2016-8610, CVE-2017-3731

DSA: 3773