Ubuntu 8.10 / 9.04 / 9.10 : ruby1.9 vulnerabilities (USN-900-1)

Ubuntu Security Notice (C) 2010-2014 Canonical, Inc. / NASL script (C) 2010-2014 Tenable Network Security, Inc.


Synopsis :

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

Description :

Emmanouel Kellinis discovered that Ruby did not properly handle
certain string operations. An attacker could exploit this issue and
possibly execute arbitrary code with application privileges.
(CVE-2009-4124)

Giovanni Pellerano, Alessandro Tanasi, and Francesco Ongaro discovered
that Ruby did not properly sanitize data written to log files. An
attacker could insert specially crafted data into log files which
could affect certain terminal emulators and cause arbitrary files to
be overwritten, or even possibly execute arbitrary commands.
(CVE-2009-4492)

It was discovered that Ruby did not properly handle string arguments
that represent large numbers. An attacker could exploit this and cause
a denial of service. This issue only affected Ubuntu 9.10.
(CVE-2009-1904).

Solution :

Update the affected packages.

Risk factor :

Critical / CVSS Base Score : 10.0
(CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C)
CVSS Temporal Score : 8.3
(CVSS2#E:F/RL:OF/RC:C)
Public Exploit Available : true

Family: Ubuntu Local Security Checks

Nessus Plugin ID: 44640 ()

Bugtraq ID: 37710

CVE ID: CVE-2009-1904
CVE-2009-4124
CVE-2009-4492