Debian DSA-2738-1 : ruby1.9.1 - several vulnerabilities

medium Nessus Plugin ID 69398
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VPR Score: 5.9

Synopsis

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

Description

Several vulnerabilities have been discovered in the interpreter for the Ruby language, which may lead to denial of service and other security problems. The Common Vulnerabilities and Exposures project identifies the following problems :

- CVE-2013-1821 Ben Murphy discovered that unrestricted entity expansion in REXML can lead to a Denial of Service by consuming all host memory.

- CVE-2013-4073 William (B.J.) Snow Orvis discovered a vulnerability in the hostname checking in Ruby's SSL client that could allow man-in-the-middle attackers to spoof SSL servers via valid certificate issued by a trusted certification authority.

Solution

Upgrade the ruby1.9.1 packages.

For the oldstable distribution (squeeze), these problems have been fixed in version 1.9.2.0-2+deb6u1.

For the stable distribution (wheezy), these problems have been fixed in version 1.9.3.194-8.1+deb7u1.

See Also

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=702525

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=714543

https://security-tracker.debian.org/tracker/CVE-2013-1821

https://security-tracker.debian.org/tracker/CVE-2013-4073

https://packages.debian.org/source/wheezy/ruby1.9.1

https://www.debian.org/security/2013/dsa-2738

Plugin Details

Severity: Medium

ID: 69398

File Name: debian_DSA-2738.nasl

Version: 1.12

Type: local

Agent: unix

Published: 8/20/2013

Updated: 1/11/2021

Dependencies: ssh_get_info.nasl

Risk Information

Risk Factor: Medium

VPR Score: 5.9

CVSS v2.0

Base Score: 6.8

Temporal Score: 5

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

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:ruby1.9.1, cpe:/o:debian:debian_linux:6.0, cpe:/o:debian:debian_linux:7.0

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

Exploit Ease: No known exploits are available

Patch Publication Date: 8/18/2013

Reference Information

CVE: CVE-2013-1821, CVE-2013-4073

BID: 58141, 60843

DSA: 2738