Homepage
About Snyk

Access Restriction Bypass Affecting openssh package, versions <1:5.8p1-2

0.0
medium

Snyk CVSS

    Attack Complexity Low

    Threat Intelligence

    EPSS 0.7% (81st percentile)
Expand this section
NVD
5.3 medium

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk ID SNYK-DEBIAN11-OPENSSH-515503
  • published 10 Feb 2011
  • disclosed 10 Feb 2011
Report a new vulnerability Found a mistake?

Introduced: 10 Feb 2011

CVE-2011-0539 Open this link in a new tab
CWE-264 Open this link in a new tab

How to fix?

Upgrade Debian:11 openssh to version 1:5.8p1-2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream openssh package and not the openssh package as distributed by Debian. See How to fix? for Debian:11 relevant fixed versions and status.

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.