Debian DSA-1651-1 : ruby1.8 - several vulnerabilities

High Nessus Plugin ID 34387

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VPR Score: 6.6


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


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-2008-3655 Keita Yamaguchi discovered that several safe level restrictions are insufficiently enforced.

- CVE-2008-3656 Christian Neukirchen discovered that the WebRick module uses inefficient algorithms for HTTP header splitting, resulting in denial of service through resource exhaustion.

- CVE-2008-3657 It was discovered that the dl module doesn't perform taintness checks.

- CVE-2008-3790 Luka Treiber and Mitja Kolsek discovered that recursively nested XML entities can lead to denial of service through resource exhaustion in rexml.

- CVE-2008-3905 Tanaka Akira discovered that the resolv module uses sequential transaction IDs and a fixed source port for DNS queries, which makes it more vulnerable to DNS spoofing attacks.


Upgrade the ruby1.8 packages.

For the stable distribution (etch), these problems have been fixed in version 1.8.5-4etch3. Packages for arm will be provided later.

See Also

Plugin Details

Severity: High

ID: 34387

File Name: debian_DSA-1651.nasl

Version: 1.17

Type: local

Agent: unix

Published: 2008/10/13

Updated: 2019/08/02

Dependencies: 12634

Risk Information

Risk Factor: High

VPR Score: 6.6

CVSS v2.0

Base Score: 7.8

Temporal Score: 6.1

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

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:ruby1.8, cpe:/o:debian:debian_linux:4.0

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2008/10/12

Reference Information

CVE: CVE-2008-3655, CVE-2008-3656, CVE-2008-3657, CVE-2008-3790, CVE-2008-3905

BID: 30644, 30802, 31699

DSA: 1651

CWE: 20, 264, 287, 399