CVE-2013-0183: Buffer Overflow
multipart/parser.rb in Rack 1.3.x before 1.3.8 and 1.4.x before 1.4.3 allows remote attackers to cause a denial of service (memory consumption and out-of-memory error) via a long string in a Multipart HTTP packet.
Other sources
Upstream released [1] Rack 1.4.3 and 1.3.8 to fix a denial of service condition due to a malicious client sending excessively long lines that trigger an out-of-memory error in Rack.
This has been fixed in git [2].
[1] https://groups.google.com/forum/#!topic/rack-devel/-MWPHDeGWtI/discussion [2] https://github.com/rack/rack/commit/f95113402b7239f225282806673e1b6424522b18
— Red Hat
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2013-0183?
CVE-2013-0183 has a severity rating of medium due to its potential to cause denial of service through memory consumption.
How do I fix CVE-2013-0183?
To fix CVE-2013-0183, upgrade to Rack version 1.4.3 or 1.3.8 or later.
What versions of Rack are affected by CVE-2013-0183?
CVE-2013-0183 affects Rack versions 1.3.0 through 1.3.7 and 1.4.0 through 1.4.2.
What types of attacks can CVE-2013-0183 enable?
CVE-2013-0183 can enable denial of service attacks by causing excessive memory consumption.
Is CVE-2013-0183 a remote vulnerability?
Yes, CVE-2013-0183 is a remote vulnerability that can be exploited through specially crafted Multipart HTTP packets.