CVE-2011-4327

MEDIUM

5.5

CVSS Score

Published: February 3, 2014 at 02:00 AM UTC

Updated: June 16, 2026 at 11:34 PM UTC

1 product affected across 1 vendorOpenSSH

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Severity

MEDIUM5.5

Exploit prediction

EPSS 0.4%

SSVC

No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

OpenSSH · Openbsd

95%

v ≤ 5.81.2 1.2.1 1.2.2 1.2.27 1.2.3 1.3 1.5 1.5.7 1.5.8 2 2.1 2.1.1 2.2 2.3 2.3.1 2.5 2.5.1 2.5.2 2.9 2.9.9 2.9.9p2 2.9p1 2.9p2 3.0 3.0.1 3.0.1p1 3.0.2 3.0.2p1 3.0p1 3.1 3.1p1 3.2 3.2.2 3.2.2p1 3.2.3p1 3.3 3.3p1 3.4 3.4p1 3.5 3.5p1 3.6 3.6.1 3.6.1p1 3.6.1p2 3.7 3.7.1 3.7.1p1 3.7.1p2 3.8 3.8.1 3.8.1p1 3.9 3.9.1 3.9.1p1 4.0 4.0p1 4.1 4.1p1 4.2 4.2p1 4.3 4.3p1 4.3p2 4.4 4.4p1 4.5 4.6 4.7 4.8 4.9 5.0 5.1 5.2 5.3 5.4 5.5 5.6 5.7

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

http://www.openssh.com/txt/portable-keysign-rand-helper.adv

References (2)

x_refsource_CONFIRMVendor Advisory

Source: [email protected]

http://www.openssh.com/txt/portable-keysign-rand-helper.adv

x_refsource_CONFIRM

Source: [email protected]

https://bugzilla.redhat.com/show_bug.cgi?id=755640

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.5MEDIUMCISA-ADP

Attack Vector: LOCAL
Complexity: LOW
Privileges: LOW
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: HIGH
Integrity: NONE
Availability: NONE

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-200

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