Bug 709023 (CVE-2011-0766)

Summary:	CVE-2011-0766 erlang: SSH library uses a weak random number generator
Product:	[Other] Security Response	Reporter:	Jan Lieskovsky <jlieskov>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	gemi, lemenkov, rhbugs, uwe
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2011-09-13 09:38:35 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	709024, 709026
Bug Blocks:

Description Jan Lieskovsky 2011-05-30 12:26:29 UTC

Geoff Cant reported that the Erlang/OTP SSH library's random number generator
relied on predictable seed information. A remote attacker could use this flaw
to recover SSH session keys or DSA host keys.

References:
[1] http://www.kb.cert.org/vuls/id/178990
[2] http://www.erlang.org/download.html
[3] http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=628456
[4] http://www.erlang.org/
[5] http://www.erlang.org/download.html

Upstream patch:
[6] https://github.com/erlang/otp/commit/f228601de45c5b53241b103af6616453c50885a5

Comment 1 Jan Lieskovsky 2011-05-30 12:29:38 UTC

This issue affects the versions of the erlang package, as shipped with
Fedora release of 13, 14, and 15.

This issue affects the version of the erlang package, as present within
EPEL-6 repository.

Note: EPEL-4 and EPEL-5 erlang versions are affected too, but those are
      too old and assuming there will be no willingness to update / rebase
      those.

Comment 2 Jan Lieskovsky 2011-05-30 12:30:38 UTC

Created erlang tracking bugs for this issue

Affects: fedora-all [bug 709024]
Affects: epel-all [bug 709026]

Comment 3 Jan Lieskovsky 2011-09-13 09:38:35 UTC

This issue has been addressed by the following releases:
1) erlang-R14B-03.1.fc14 for F-14,
2) erlang-R14B-03.2.fc15 for F-15,
3) erlang-R14B-03.3.el6 for EPEL-6.