CVE-2008-2726: Integer Overflow
First published: Tue Jun 24 2008(Updated: )
Integer overflow in the (1) rb_ary_splice function in Ruby 1.8.4 and earlier, 1.8.5 before 1.8.5-p231, 1.8.6 before 1.8.6-p230, 1.8.7 before 1.8.7-p22, and 1.9.0 before 1.9.0-2; and (2) the rb_ary_replace function in 1.6.x allows context-dependent attackers to trigger memory corruption, aka the "beg + rlen" issue. NOTE: as of 20080624, there has been inconsistent usage of multiple CVE identifiers related to Ruby. The CVE description should be regarded as authoritative, although it is likely to change.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Ruby | <=1.8.4 | |
| Ruby | >=1.8.5<1.8.5.231 | |
| Ruby | >=1.8.6<1.8.6.230 | |
| Ruby | >=1.8.7<1.8.7.22 | |
| Ruby | >=1.9.0<1.9.0.2 | |
| Debian GNU/Linux | =4.0 | |
| Ubuntu Linux | =6.06 | |
| Ubuntu Linux | =7.04 | |
| Ubuntu Linux | =7.10 | |
| Ubuntu Linux | =8.04 | |
| Debian | =4.0 | |
| Ubuntu | =6.06 | |
| Ubuntu | =7.04 | |
| Ubuntu | =7.10 | |
| Ubuntu | =8.04 |
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Reference Links
- http://blog.phusion.nl/2008/06/23/ruby-186-p230187-broke-your-app-ruby-enterprise-edition-to-the-rescue/
- http://lists.apple.com/archives/security-announce/2008//Jun/msg00002.html
- http://lists.opensuse.org/opensuse-security-announce/2008-08/msg00006.html
- http://secunia.com/advisories/30802
- http://secunia.com/advisories/30831
- http://secunia.com/advisories/30867
- http://secunia.com/advisories/30875
- http://secunia.com/advisories/30894
- http://secunia.com/advisories/31062
- http://secunia.com/advisories/31090
- http://secunia.com/advisories/31181
- http://secunia.com/advisories/31256
- http://secunia.com/advisories/31687
- http://secunia.com/advisories/33178
- http://security.gentoo.org/glsa/glsa-200812-17.xml
- http://slackware.com/security/viewer.php?l=slackware-security&y=2008&m=slackware-security.429562
- http://support.apple.com/kb/HT2163
- http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=17460
- http://weblog.rubyonrails.org/2008/6/21/multiple-ruby-security-vulnerabilities
- http://wiki.rpath.com/wiki/Advisories:rPSA-2008-0206
- http://www.debian.org/security/2008/dsa-1612
- http://www.debian.org/security/2008/dsa-1618
- http://www.mandriva.com/security/advisories?name=MDVSA-2008:140
- http://www.mandriva.com/security/advisories?name=MDVSA-2008:141
- http://www.mandriva.com/security/advisories?name=MDVSA-2008:142
- http://www.matasano.com/log/1070/updates-on-drew-yaos-terrible-ruby-vulnerabilities/
- http://www.redhat.com/archives/fedora-security-commits/2008-June/msg00005.html
- http://www.redhat.com/support/errata/RHSA-2008-0561.html
- http://www.ruby-forum.com/topic/157034
- http://www.ruby-lang.org/en/news/2008/06/20/arbitrary-code-execution-vulnerabilities/
- http://www.rubyinside.com/june-2008-ruby-security-vulnerabilities-927.html
- http://www.securityfocus.com/archive/1/493688/100/0/threaded
- http://www.securityfocus.com/bid/29903
- http://www.securitytracker.com/id?1020347
- http://www.ubuntu.com/usn/usn-621-1
- http://www.vupen.com/english/advisories/2008/1907/references
- http://www.vupen.com/english/advisories/2008/1981/references
- http://www.zedshaw.com/rants/the_big_ruby_vulnerabilities.html
- https://bugs.launchpad.net/ubuntu/+source/ruby1.8/+bug/241657
- https://exchange.xforce.ibmcloud.com/vulnerabilities/43351
- https://issues.rpath.com/browse/RPL-2626
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9959
- https://www.redhat.com/archives/fedora-package-announce/2008-June/msg00937.html
Frequently Asked Questions
What is the severity of CVE-2008-2726?
CVE-2008-2726 has a moderate severity rating due to potential memory corruption caused by integer overflow.
How do I fix CVE-2008-2726?
To fix CVE-2008-2726, upgrade Ruby to version 1.8.5-p231 or later, or to version 1.8.6-p230 or later.
What software is affected by CVE-2008-2726?
CVE-2008-2726 affects Ruby versions 1.8.4 and earlier, 1.8.5 before 1.8.5-p231, and several other specific versions up to 1.9.0-2.
Can CVE-2008-2726 lead to exploitation?
Yes, CVE-2008-2726 can be exploited by context-dependent attackers to trigger memory corruption.
What should I do if I'm using an affected version of Ruby due to CVE-2008-2726?
If using an affected version of Ruby, immediately update to a patched version to mitigate the vulnerability.
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