Moderate: ruby security update

Advisory:	RHSA-2008:0896-5
Type:	Security Advisory
Severity:	Moderate
Issued on:	2008-10-21
Last updated on:	2008-10-21
Affected Products:	Red Hat Desktop (v. 3) Red Hat Enterprise Linux AS (v. 3) Red Hat Enterprise Linux ES (v. 3) Red Hat Enterprise Linux WS (v. 3)
OVAL:	com.redhat.rhsa-20080896.xml
CVEs (cve.mitre.org):	CVE-2008-3443 CVE-2008-3655 CVE-2008-3905

Details

Updated ruby packages that fix several security issues are now available
for Red Hat Enterprise Linux 3.

This update has been rated as having moderate security impact by the Red
Hat Security Response Team.

Ruby is an interpreted scripting language for quick and easy
object-oriented programming.

The Ruby DNS resolver library, resolv.rb, used predictable transaction IDs
and a fixed source port when sending DNS requests. A remote attacker could
use this flaw to spoof a malicious reply to a DNS query. (CVE-2008-3905)

A number of flaws were found in the safe-level restrictions in Ruby. It
was possible for an attacker to create a carefully crafted malicious script
that can allow the bypass of certain safe-level restrictions. (CVE-2008-3655)

A denial of service flaw was found in Ruby's regular expression engine. If
a Ruby script tried to process a large amount of data via a regular
expression, it could cause Ruby to enter an infinite-loop and crash.
(CVE-2008-3443)

Users of ruby should upgrade to these updated packages, which contain
backported patches to resolve these issues.

Solution

Before applying this update, make sure that all previously-released
errata relevant to your system have been applied.

This update is available via Red Hat Network. Details on how to use
the Red Hat Network to apply this update are available at
http://kbase.redhat.com/faq/FAQ_58_10188

Updated packages

Red Hat Desktop (v. 3)

SRPMS:
ruby-1.6.8-13.el3.src.rpm	`e9c9caee90c314f8758ad857bf649cf3`

IA-32:
irb-1.6.8-13.el3.i386.rpm	`074b151adef2f998efc05d6671dc5c76`
ruby-1.6.8-13.el3.i386.rpm	`3bbb86e368e286824d9e780d57d3ae80`
ruby-devel-1.6.8-13.el3.i386.rpm	`1b9e1a072e9d99ad454d8cf343552ff5`
ruby-docs-1.6.8-13.el3.i386.rpm	`52b2635a4c25a4ce24954cc2359b1606`
ruby-libs-1.6.8-13.el3.i386.rpm	`24c5b2bc5122e70250ba4a9c0a6d2935`
ruby-mode-1.6.8-13.el3.i386.rpm	`054aa7431ffbae39327ce6dc40a5c588`
ruby-tcltk-1.6.8-13.el3.i386.rpm	`d70feeaa2596cfe9733cdc3a5b9afe23`

x86_64:
irb-1.6.8-13.el3.x86_64.rpm	`b0d8a5981be5376669c1b03787381cf8`
ruby-1.6.8-13.el3.x86_64.rpm	`3d79bbdddfc242143abe3e9600de3d83`
ruby-devel-1.6.8-13.el3.x86_64.rpm	`f3db525f0a11279f12daa282f27f3d0d`
ruby-docs-1.6.8-13.el3.x86_64.rpm	`b192ecd2984fff73bdda49608e870cbf`
ruby-libs-1.6.8-13.el3.i386.rpm	`24c5b2bc5122e70250ba4a9c0a6d2935`
ruby-libs-1.6.8-13.el3.x86_64.rpm	`7ed348af4e32e002b68fb1535c2ee580`
ruby-mode-1.6.8-13.el3.x86_64.rpm	`d6e9cfee9242720012b4c2a102f073ef`
ruby-tcltk-1.6.8-13.el3.x86_64.rpm	`470ea72fbe7737a382da857584b4b8a2`

Red Hat Enterprise Linux AS (v. 3)

SRPMS:
ruby-1.6.8-13.el3.src.rpm	`e9c9caee90c314f8758ad857bf649cf3`

IA-32:
irb-1.6.8-13.el3.i386.rpm	`074b151adef2f998efc05d6671dc5c76`
ruby-1.6.8-13.el3.i386.rpm	`3bbb86e368e286824d9e780d57d3ae80`
ruby-devel-1.6.8-13.el3.i386.rpm	`1b9e1a072e9d99ad454d8cf343552ff5`
ruby-docs-1.6.8-13.el3.i386.rpm	`52b2635a4c25a4ce24954cc2359b1606`
ruby-libs-1.6.8-13.el3.i386.rpm	`24c5b2bc5122e70250ba4a9c0a6d2935`
ruby-mode-1.6.8-13.el3.i386.rpm	`054aa7431ffbae39327ce6dc40a5c588`
ruby-tcltk-1.6.8-13.el3.i386.rpm	`d70feeaa2596cfe9733cdc3a5b9afe23`

IA-64:
irb-1.6.8-13.el3.ia64.rpm	`6016832fa55a87e75e6ab546a018bb4c`
ruby-1.6.8-13.el3.ia64.rpm	`7894a2f7fb7e7a5209009f0cd79f0c24`
ruby-devel-1.6.8-13.el3.ia64.rpm	`a571229ab311b6513a6dbfc965ee836e`
ruby-docs-1.6.8-13.el3.ia64.rpm	`7f0b6dfe9f2da361a026ef810864de1d`
ruby-libs-1.6.8-13.el3.i386.rpm	`24c5b2bc5122e70250ba4a9c0a6d2935`
ruby-libs-1.6.8-13.el3.ia64.rpm	`f1921732284c2dafd0ea060bcd97658e`
ruby-mode-1.6.8-13.el3.ia64.rpm	`72221db6863c5577cddc03ddb35a6bc6`
ruby-tcltk-1.6.8-13.el3.ia64.rpm	`0bcb0ae70a7acd514aac98f9f64aed18`

PPC:
irb-1.6.8-13.el3.ppc.rpm	`657e4d63cf1f7293358069c130e422ed`
ruby-1.6.8-13.el3.ppc.rpm	`e73cb176c11f044c38d1bb076f42e55c`
ruby-devel-1.6.8-13.el3.ppc.rpm	`4e22f71e6f2bc84a1e900e907d4c34ec`
ruby-docs-1.6.8-13.el3.ppc.rpm	`e73f11e4c3dde12318016da1f3f4d78b`
ruby-libs-1.6.8-13.el3.ppc.rpm	`497538be76e9c951c480fc63d118bfba`
ruby-libs-1.6.8-13.el3.ppc64.rpm	`f21c869957d21a282608ceeaae564ad1`
ruby-mode-1.6.8-13.el3.ppc.rpm	`bc9d12c8499a7059615aafe50ccff175`
ruby-tcltk-1.6.8-13.el3.ppc.rpm	`13b977719a0a9fa5a2fd1af28c094a1a`

s390:
irb-1.6.8-13.el3.s390.rpm	`8e896e2d952516e7cefcd5f72214653a`
ruby-1.6.8-13.el3.s390.rpm	`a5779d1291c83bdc69394883e424adda`
ruby-devel-1.6.8-13.el3.s390.rpm	`8752301fc63d5692ce213f754c9f0569`
ruby-docs-1.6.8-13.el3.s390.rpm	`981cf2890a177b8df517ec728d01f0a2`
ruby-libs-1.6.8-13.el3.s390.rpm	`a16a9daf93c6418326e05920c961158d`
ruby-mode-1.6.8-13.el3.s390.rpm	`f985ac551f4e98201b8d484964015d60`
ruby-tcltk-1.6.8-13.el3.s390.rpm	`0816e860b0b7b76d0f3996584a7f5313`

s390x:
irb-1.6.8-13.el3.s390x.rpm	`038aa06793353381206e8647557140d6`
ruby-1.6.8-13.el3.s390x.rpm	`3ee6f974bd684e39c81e92256970793a`
ruby-devel-1.6.8-13.el3.s390x.rpm	`1b7305d4299dcbe3d48261a89ae4fcb4`
ruby-docs-1.6.8-13.el3.s390x.rpm	`8ca911c94c2e9389546f0a5d58fb1fb3`
ruby-libs-1.6.8-13.el3.s390.rpm	`a16a9daf93c6418326e05920c961158d`
ruby-libs-1.6.8-13.el3.s390x.rpm	`be734e7528dc9337f66cf2909b9ceb89`
ruby-mode-1.6.8-13.el3.s390x.rpm	`a67f3cbc1e74afde762513b33711b618`
ruby-tcltk-1.6.8-13.el3.s390x.rpm	`2caf1868f761c7379afd38dd2b601736`

x86_64:
irb-1.6.8-13.el3.x86_64.rpm	`b0d8a5981be5376669c1b03787381cf8`
ruby-1.6.8-13.el3.x86_64.rpm	`3d79bbdddfc242143abe3e9600de3d83`
ruby-devel-1.6.8-13.el3.x86_64.rpm	`f3db525f0a11279f12daa282f27f3d0d`
ruby-docs-1.6.8-13.el3.x86_64.rpm	`b192ecd2984fff73bdda49608e870cbf`
ruby-libs-1.6.8-13.el3.i386.rpm	`24c5b2bc5122e70250ba4a9c0a6d2935`
ruby-libs-1.6.8-13.el3.x86_64.rpm	`7ed348af4e32e002b68fb1535c2ee580`
ruby-mode-1.6.8-13.el3.x86_64.rpm	`d6e9cfee9242720012b4c2a102f073ef`
ruby-tcltk-1.6.8-13.el3.x86_64.rpm	`470ea72fbe7737a382da857584b4b8a2`

Red Hat Enterprise Linux ES (v. 3)

SRPMS:
ruby-1.6.8-13.el3.src.rpm	`e9c9caee90c314f8758ad857bf649cf3`

IA-32:
irb-1.6.8-13.el3.i386.rpm	`074b151adef2f998efc05d6671dc5c76`
ruby-1.6.8-13.el3.i386.rpm	`3bbb86e368e286824d9e780d57d3ae80`
ruby-devel-1.6.8-13.el3.i386.rpm	`1b9e1a072e9d99ad454d8cf343552ff5`
ruby-docs-1.6.8-13.el3.i386.rpm	`52b2635a4c25a4ce24954cc2359b1606`
ruby-libs-1.6.8-13.el3.i386.rpm	`24c5b2bc5122e70250ba4a9c0a6d2935`
ruby-mode-1.6.8-13.el3.i386.rpm	`054aa7431ffbae39327ce6dc40a5c588`
ruby-tcltk-1.6.8-13.el3.i386.rpm	`d70feeaa2596cfe9733cdc3a5b9afe23`

IA-64:
irb-1.6.8-13.el3.ia64.rpm	`6016832fa55a87e75e6ab546a018bb4c`
ruby-1.6.8-13.el3.ia64.rpm	`7894a2f7fb7e7a5209009f0cd79f0c24`
ruby-devel-1.6.8-13.el3.ia64.rpm	`a571229ab311b6513a6dbfc965ee836e`
ruby-docs-1.6.8-13.el3.ia64.rpm	`7f0b6dfe9f2da361a026ef810864de1d`
ruby-libs-1.6.8-13.el3.i386.rpm	`24c5b2bc5122e70250ba4a9c0a6d2935`
ruby-libs-1.6.8-13.el3.ia64.rpm	`f1921732284c2dafd0ea060bcd97658e`
ruby-mode-1.6.8-13.el3.ia64.rpm	`72221db6863c5577cddc03ddb35a6bc6`
ruby-tcltk-1.6.8-13.el3.ia64.rpm	`0bcb0ae70a7acd514aac98f9f64aed18`

x86_64:
irb-1.6.8-13.el3.x86_64.rpm	`b0d8a5981be5376669c1b03787381cf8`
ruby-1.6.8-13.el3.x86_64.rpm	`3d79bbdddfc242143abe3e9600de3d83`
ruby-devel-1.6.8-13.el3.x86_64.rpm	`f3db525f0a11279f12daa282f27f3d0d`
ruby-docs-1.6.8-13.el3.x86_64.rpm	`b192ecd2984fff73bdda49608e870cbf`
ruby-libs-1.6.8-13.el3.i386.rpm	`24c5b2bc5122e70250ba4a9c0a6d2935`
ruby-libs-1.6.8-13.el3.x86_64.rpm	`7ed348af4e32e002b68fb1535c2ee580`
ruby-mode-1.6.8-13.el3.x86_64.rpm	`d6e9cfee9242720012b4c2a102f073ef`
ruby-tcltk-1.6.8-13.el3.x86_64.rpm	`470ea72fbe7737a382da857584b4b8a2`

Red Hat Enterprise Linux WS (v. 3)

SRPMS:
ruby-1.6.8-13.el3.src.rpm	`e9c9caee90c314f8758ad857bf649cf3`

IA-32:
irb-1.6.8-13.el3.i386.rpm	`074b151adef2f998efc05d6671dc5c76`
ruby-1.6.8-13.el3.i386.rpm	`3bbb86e368e286824d9e780d57d3ae80`
ruby-devel-1.6.8-13.el3.i386.rpm	`1b9e1a072e9d99ad454d8cf343552ff5`
ruby-docs-1.6.8-13.el3.i386.rpm	`52b2635a4c25a4ce24954cc2359b1606`
ruby-libs-1.6.8-13.el3.i386.rpm	`24c5b2bc5122e70250ba4a9c0a6d2935`
ruby-mode-1.6.8-13.el3.i386.rpm	`054aa7431ffbae39327ce6dc40a5c588`
ruby-tcltk-1.6.8-13.el3.i386.rpm	`d70feeaa2596cfe9733cdc3a5b9afe23`

IA-64:
irb-1.6.8-13.el3.ia64.rpm	`6016832fa55a87e75e6ab546a018bb4c`
ruby-1.6.8-13.el3.ia64.rpm	`7894a2f7fb7e7a5209009f0cd79f0c24`
ruby-devel-1.6.8-13.el3.ia64.rpm	`a571229ab311b6513a6dbfc965ee836e`
ruby-docs-1.6.8-13.el3.ia64.rpm	`7f0b6dfe9f2da361a026ef810864de1d`
ruby-libs-1.6.8-13.el3.i386.rpm	`24c5b2bc5122e70250ba4a9c0a6d2935`
ruby-libs-1.6.8-13.el3.ia64.rpm	`f1921732284c2dafd0ea060bcd97658e`
ruby-mode-1.6.8-13.el3.ia64.rpm	`72221db6863c5577cddc03ddb35a6bc6`
ruby-tcltk-1.6.8-13.el3.ia64.rpm	`0bcb0ae70a7acd514aac98f9f64aed18`

x86_64:
irb-1.6.8-13.el3.x86_64.rpm	`b0d8a5981be5376669c1b03787381cf8`
ruby-1.6.8-13.el3.x86_64.rpm	`3d79bbdddfc242143abe3e9600de3d83`
ruby-devel-1.6.8-13.el3.x86_64.rpm	`f3db525f0a11279f12daa282f27f3d0d`
ruby-docs-1.6.8-13.el3.x86_64.rpm	`b192ecd2984fff73bdda49608e870cbf`
ruby-libs-1.6.8-13.el3.i386.rpm	`24c5b2bc5122e70250ba4a9c0a6d2935`
ruby-libs-1.6.8-13.el3.x86_64.rpm	`7ed348af4e32e002b68fb1535c2ee580`
ruby-mode-1.6.8-13.el3.x86_64.rpm	`d6e9cfee9242720012b4c2a102f073ef`
ruby-tcltk-1.6.8-13.el3.x86_64.rpm	`470ea72fbe7737a382da857584b4b8a2`

(The unlinked packages above are only available from the Red Hat Network)

Bugs fixed (see bugzilla for more information)

458948 - CVE-2008-3655 ruby: multiple insufficient safe mode restrictions
459266 - CVE-2008-3443 ruby: Memory allocation failure in Ruby regex engine (remotely exploitable DoS)
461495 - CVE-2008-3905 ruby: use of predictable source port and transaction id in DNS requests done by resolv.rb module

References

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-3443
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-3655
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-3905
http://www.redhat.com/security/updates/classification/#moderate

These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from:
https://www.redhat.com/security/team/key/#package

The Red Hat security contact is secalert@redhat.com. More contact details at http://www.redhat.com/security/team/contact/