Ubuntu 12.04 LTS / 12.10 : ruby1.9.1 vulnerabilities (USN-1614-1)
Medium Nessus Plugin ID 62661
SynopsisThe remote Ubuntu host is missing a security-related patch.
DescriptionTyler 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.
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.
SolutionUpdate the affected libruby1.9.1 package.