Ubuntu 12.04 LTS / 12.10 : ruby1.9.1 vulnerabilities (USN-1614-1)

Medium Nessus Plugin ID 62661

Synopsis

The remote Ubuntu host is missing a security-related patch.

Description

Tyler Hicks and Shugo Maeda discovered that Ruby incorrectly allowed untainted strings to be modified in protective safe levels. An attacker could use this flaw to bypass intended access restrictions.
USN-1602-1 fixed these vulnerabilities in other Ubuntu releases. This update provides the corresponding updates for Ubuntu 12.10.
(CVE-2012-4464, CVE-2012-4466)

Peter Bex discovered that Ruby incorrectly handled file path strings when opening files. An attacker could use this flaw to open or create unexpected files. (CVE-2012-4522).

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 libruby1.9.1 package.

See Also

https://usn.ubuntu.com/1614-1/

Plugin Details

Severity: Medium

ID: 62661

File Name: ubuntu_USN-1614-1.nasl

Version: 1.7

Type: local

Agent: unix

Published: 2012/10/23

Updated: 2018/12/01

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:P/A:N

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

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:libruby1.9.1, cpe:/o:canonical:ubuntu_linux:12.04:-:lts, cpe:/o:canonical:ubuntu_linux:12.10

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

Exploit Available: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2012/10/22

Reference Information

CVE: CVE-2012-4464, CVE-2012-4466, CVE-2012-4522

BID: 55757, 56115

USN: 1614-1