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CVE-2011-4327

MEDIUMCVSS 5.5/10EPSS 0.42%

Last modified

CVE-2011-4327 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. ssh-keysign.c in ssh-keysign in OpenSSH before 5.8p2 on certain platforms executes ssh-rand-helper with unintended open file descriptors, which allows local users to obtain sensitive key information via the ptrace system call.. EPSS estimates a 0.42% chance of exploitation in the next 30 days.

Description

ssh-keysign.c in ssh-keysign in OpenSSH before 5.8p2 on certain platforms executes ssh-rand-helper with unintended open file descriptors, which allows local users to obtain sensitive key information via the ptrace system call.

Metrics

CVSS 3.1
5.5/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

EPSS Probability
0.42%

33.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
OpenbsdOpenssh<= 5.8
OpenbsdOpenssh1.2
OpenbsdOpenssh1.2.1
OpenbsdOpenssh1.2.2
OpenbsdOpenssh1.2.3
OpenbsdOpenssh1.2.27
OpenbsdOpenssh1.3
OpenbsdOpenssh1.5
OpenbsdOpenssh1.5.7
OpenbsdOpenssh1.5.8
OpenbsdOpenssh2
OpenbsdOpenssh2.1
OpenbsdOpenssh2.1.1
OpenbsdOpenssh2.2
OpenbsdOpenssh2.3
OpenbsdOpenssh2.3.1
OpenbsdOpenssh2.5
OpenbsdOpenssh2.5.1
OpenbsdOpenssh2.5.2
OpenbsdOpenssh2.9
OpenbsdOpenssh2.9.9
OpenbsdOpenssh2.9.9p2
OpenbsdOpenssh2.9p1
OpenbsdOpenssh2.9p2
OpenbsdOpenssh3.0
OpenbsdOpenssh3.0.1
OpenbsdOpenssh3.0.1p1
OpenbsdOpenssh3.0.2
OpenbsdOpenssh3.0.2p1
OpenbsdOpenssh3.0p1
OpenbsdOpenssh3.1
OpenbsdOpenssh3.1p1
OpenbsdOpenssh3.2
OpenbsdOpenssh3.2.2
OpenbsdOpenssh3.2.2p1
OpenbsdOpenssh3.2.3p1
OpenbsdOpenssh3.3
OpenbsdOpenssh3.3p1
OpenbsdOpenssh3.4
OpenbsdOpenssh3.4p1
OpenbsdOpenssh3.5
OpenbsdOpenssh3.5p1
OpenbsdOpenssh3.6
OpenbsdOpenssh3.6.1
OpenbsdOpenssh3.6.1p1
OpenbsdOpenssh3.6.1p2
OpenbsdOpenssh3.7
OpenbsdOpenssh3.7.1
OpenbsdOpenssh3.7.1p1
OpenbsdOpenssh3.7.1p2

Showing 50 of 80 affected configurations. See NVD for the full list.

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2011-4327?
ssh-keysign.c in ssh-keysign in OpenSSH before 5.8p2 on certain platforms executes ssh-rand-helper with unintended open file descriptors, which allows local users to obtain sensitive key information via the ptrace system call.
How severe is CVE-2011-4327?
CVE-2011-4327 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.42% probability of exploitation in the next 30 days.
How do I fix CVE-2011-4327?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2011-4327?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST