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CVE-2011-5000

UnknownEPSS 2.60%

Last modified

CVE-2011-5000 is a vulnerability of currently unknown severity. The ssh_gssapi_parse_ename function in gss-serv.c in OpenSSH 5.8 and earlier, when gssapi-with-mic authentication is enabled, allows remote authenticated users to cause a denial of service (memory consumption) via a large value in a certain length field. NOTE: there may be limited scenarios in which this issue is relevant.. EPSS estimates a 2.60% chance of exploitation in the next 30 days.

Description

The ssh_gssapi_parse_ename function in gss-serv.c in OpenSSH 5.8 and earlier, when gssapi-with-mic authentication is enabled, allows remote authenticated users to cause a denial of service (memory consumption) via a large value in a certain length field. NOTE: there may be limited scenarios in which this issue is relevant.

Metrics

EPSS Probability
2.60%

83.3th 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
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
OpenbsdOpenssh3.8
OpenbsdOpenssh3.8.1
OpenbsdOpenssh3.8.1p1
OpenbsdOpenssh3.9
OpenbsdOpenssh3.9.1
OpenbsdOpenssh3.9.1p1
OpenbsdOpenssh4.0
OpenbsdOpenssh4.0p1
OpenbsdOpenssh4.1
OpenbsdOpenssh4.1p1
OpenbsdOpenssh4.2
OpenbsdOpenssh4.2p1
OpenbsdOpenssh4.3
OpenbsdOpenssh4.3p1

Showing 50 of 66 affected configurations. See NVD for the full list.

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2011-5000?
The ssh_gssapi_parse_ename function in gss-serv.c in OpenSSH 5.8 and earlier, when gssapi-with-mic authentication is enabled, allows remote authenticated users to cause a denial of service (memory consumption) via a large value in a certain length field. NOTE: there may be limited scenarios in which this issue is relevant.
How severe is CVE-2011-5000?
Severity scoring for CVE-2011-5000 is pending analysis. The EPSS model estimates a 2.60% probability of exploitation in the next 30 days.
How do I fix CVE-2011-5000?
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-2011-5000?

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

Scan your code now

Source: NVD / NIST