Ubuntu 6.06 LTS / 7.04 / 7.10 / 8.04 LTS : ruby1.8 vulnerabilities (USN-621-1)

critical Nessus Plugin ID 33390
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Synopsis

The remote Ubuntu host is missing one or more security-related patches.

Description

Drew Yao discovered several vulnerabilities in Ruby which lead to integer overflows. If a user or automated system were tricked into running a malicious script, an attacker could cause a denial of service or execute arbitrary code with the privileges of the user invoking the program. (CVE-2008-2662, CVE-2008-2663, CVE-2008-2725, CVE-2008-2726)

Drew Yao discovered that Ruby did not sanitize its input when using ALLOCA. If a user or automated system were tricked into running a malicious script, an attacker could cause a denial of service via memory corruption. (CVE-2008-2664).

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

Solution

Update the affected packages.

See Also

https://usn.ubuntu.com/621-1/

Plugin Details

Severity: Critical

ID: 33390

File Name: ubuntu_USN-621-1.nasl

Version: 1.18

Type: local

Agent: unix

Published: 7/2/2008

Updated: 1/19/2021

Dependencies: ssh_get_info.nasl

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

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

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

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:irb1.8, p-cpe:/a:canonical:ubuntu_linux:libdbm-ruby1.8, p-cpe:/a:canonical:ubuntu_linux:libgdbm-ruby1.8, p-cpe:/a:canonical:ubuntu_linux:libopenssl-ruby1.8, p-cpe:/a:canonical:ubuntu_linux:libreadline-ruby1.8, p-cpe:/a:canonical:ubuntu_linux:libruby1.8, p-cpe:/a:canonical:ubuntu_linux:libruby1.8-dbg, p-cpe:/a:canonical:ubuntu_linux:libtcltk-ruby1.8, p-cpe:/a:canonical:ubuntu_linux:rdoc1.8, p-cpe:/a:canonical:ubuntu_linux:ri1.8, p-cpe:/a:canonical:ubuntu_linux:ruby1.8, p-cpe:/a:canonical:ubuntu_linux:ruby1.8-dev, p-cpe:/a:canonical:ubuntu_linux:ruby1.8-elisp, p-cpe:/a:canonical:ubuntu_linux:ruby1.8-examples, cpe:/o:canonical:ubuntu_linux:6.06:-:lts, cpe:/o:canonical:ubuntu_linux:7.04, cpe:/o:canonical:ubuntu_linux:7.10, cpe:/o:canonical:ubuntu_linux:8.04:-:lts

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

Exploit Ease: No known exploits are available

Patch Publication Date: 6/26/2008

Reference Information

CVE: CVE-2008-2662, CVE-2008-2663, CVE-2008-2664, CVE-2008-2725, CVE-2008-2726

BID: 29903

USN: 621-1

CWE: 189, 399