Red Hat Bugzilla – Bug 784641
need openssh 5.8 or higher in F15
Last modified: 2012-02-25 03:30:21 EST
Description of problem:
The key_certify function in usr.bin/ssh/key.c in OpenSSH 5.6 and 5.7, when generating legacy certificates using the -t command-line option in ssh-keygen, does not initialize the nonce field, which might allow remote attackers to obtain sensitive stack memory contents or make it easier to conduct hash collision attacks.
As Fedora 15 in still in support, one would aspect a new openssh release to be placed in a Fedora 15 rpm... it is currently in Fedora 16 & 17 (as is expected).
I am not stating this as an issue NIST is.... thus I must comply
hopefully it is in the works...
Fix from http://www.openssh.com/txt/legacy-cert.adv should be satisfactory.
openssh-5.6p1-35.fc15 has been submitted as an update for Fedora 15.
* should fix your issue,
* was pushed to the Fedora 15 testing repository,
* should be available at your local mirror within two days.
Update it with:
# su -c 'yum update --enablerepo=updates-testing openssh-5.6p1-35.fc15'
as soon as you are able to.
Please go to the following url:
then log in and leave karma (feedback).
openssh-5.6p1-35.fc15 has been pushed to the Fedora 15 stable repository. If problems still persist, please make note of it in this bug report.