CVE-2011-0539
First published: Thu Feb 10 2011(Updated: )
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.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Openbsd Openssh | =5.7 | |
| Openbsd Openssh | =5.6 |
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Reference Links
- http://www.openssh.com/txt/legacy-cert.adv
- http://www.securitytracker.com/id?1025028
- http://www.securityfocus.com/bid/46155
- http://secunia.com/advisories/43181
- http://www.openwall.com/lists/oss-security/2011/02/04/2
- http://www.vupen.com/english/advisories/2011/0284
- http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c02794777
- http://secunia.com/advisories/44269
- http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10673
- https://exchange.xforce.ibmcloud.com/vulnerabilities/65163
- collector/nvd-historical
- collector/nvd-index
- agent/author
- agent/weakness
- agent/severity
- agent/references
- agent/type
- agent/description
- agent/softwarecombine
- agent/first-publish-date
- agent/last-modified-date
- agent/remedy
- agent/event
- agent/tags
- collector/mitre-cve
- source/MITRE
- vendor/openbsd
- canonical/openbsd openssh
- version/openbsd openssh/5.7
- version/openbsd openssh/5.6