CVE-2013-0156

Name	CVE-2013-0156
Description	active_support/core_ext/hash/conversions.rb in Ruby on Rails before 2.3.15, 3.0.x before 3.0.19, 3.1.x before 3.1.10, and 3.2.x before 3.2.11 does not properly restrict casts of string values, which allows remote attackers to conduct object-injection attacks and execute arbitrary code, or cause a denial of service (memory and CPU consumption) involving nested XML entity references, by leveraging Action Pack support for (1) YAML type conversion or (2) Symbol type conversion.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub advisories/code/issues, web search, more)
References	DSA-2604-1
Debian Bugs	697722, 697789, 697790

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
rails (PTS)	buster	2:5.2.2.1+dfsg-1+deb10u3	fixed
	buster (security)	2:5.2.2.1+dfsg-1+deb10u5	fixed
	bullseye (security), bullseye	2:6.0.3.7+dfsg-2+deb11u2	fixed
	bookworm, sid	2:6.1.7.3+dfsg-1	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
rails	source	squeeze	2.3.5-1.2+squeeze4.1		DSA-2604-1
rails	source	(unstable)	2.3.14.1	high		697722
ruby-activesupport-2.3	source	(unstable)	2.3.14-5			697789
ruby-activesupport-3.2	source	(unstable)	3.2.6-5			697790

Notes

Starting with 2.3.14.1 rails is a transition package
http://www.insinuator.net/2013/01/rails-yaml/
https://www.openwall.com/lists/oss-security/2013/01/08/14
experimental has 3.2.8-1 and should be affected too