Bug 709023 (CVE-2011-0766) - CVE-2011-0766 erlang: SSH library uses a weak random number generator
Summary: CVE-2011-0766 erlang: SSH library uses a weak random number generator
Alias: CVE-2011-0766
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
Depends On: 709024 709026
TreeView+ depends on / blocked
Reported: 2011-05-30 12:26 UTC by Jan Lieskovsky
Modified: 2019-09-29 12:45 UTC (History)
4 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2011-09-13 09:38:35 UTC

Attachments (Terms of Use)

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.

[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

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.

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