Ruby: Denial of Service vulnerability
1.
Gentoo Linux Security Advisory
Version Information
| Advisory Reference |
GLSA 200611-12 / ruby |
| Release Date |
November 20, 2006 |
| Latest Revision |
November 20, 2006: 01 |
| Impact |
normal |
| Exploitable |
remote |
| Package |
Vulnerable versions |
Unaffected versions |
Architecture(s) |
| dev-lang/ruby |
<
1.8.5-r3 |
>=
1.8.5-r3 |
All supported architectures
|
Related bugreports:
#153497
Synopsis
The Ruby cgi.rb CGI library is vulnerable to a Denial of Service attack.
2.
Impact Information
Background
Ruby is a dynamic, open source programming language with a focus on
simplicity and productivity.
Description
Zed Shaw, Jeremy Kemper, and Jamis Buck of the Mongrel project reported
that the CGI library shipped with Ruby is vulnerable to a remote Denial
of Service by an unauthenticated user.
Impact
The vulnerability can be exploited by sending the cgi.rb library an
HTTP request with multipart MIME encoding that contains a malformed
MIME boundary specifier beginning with "-" instead of "--". Successful
exploitation of the vulnerability causes the library to go into an
infinite loop waiting for additional non-existent input.
3.
Resolution Information
Workaround
There is no known workaround at this time.
Resolution
All Ruby users should upgrade to the latest version:
Code Listing 3.1: Resolution |
# emerge --sync
# emerge --ask --oneshot --verbose ">=dev-lang/ruby-1.8.5-r3"
|
4.
References
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