Debian: DSA-3157-1 Urgent: Ruby 1.9.1 Buffer Overflow Vulnerability

Multiple vulnerabilities were discovered in the interpreter for the Ruby
language:

CVE-2014-4975

The encodes() function in pack.c had an off-by-one error that could
lead to a stack-based buffer overflow. This could allow remote
attackers to cause a denial of service (crash) or arbitrary code
execution.

CVE-2014-8080, CVE-2014-8090

The REXML parser could be coerced into allocating large string
objects that could consume all available memory on the system. This
could allow remote attackers to cause a denial of service (crash).

For the stable distribution (wheezy), these problems have been fixed in
version 1.9.3.194-8.1+deb7u3.

For the upcoming stable distribution (jessie), these problems have been
fixed in version 2.1.5-1 of the ruby2.1 source package.

For the unstable distribution (sid), these problems have been fixed in
version 2.1.5-1 of the ruby2.1 source package.

We recommend that you upgrade your ruby1.9.1 packages.

Further information about Debian Security Advisories,...