UpHeron
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Servers and applications

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.

Severity
Low 3.5
Published
5 Apr 2012
Last changed
16 Jun 2026
Added to UpHeron
21 Oct 2026
Exploit chance
2.6% in the next 30 daysHigher than 85% of CVEs. EPSS by FIRST, 12 Nov 2026
Weakness
CWE-189
Attack
Over the network · Needs a login
Attacker can
Slow it down
CVSS vector
AV:N/AC:M/Au:S/C:N/I:N/A:P
Sources
NVD

Affected software

SoftwareAffected versions
OpenSSHServers and applications · cpe:a:openbsd:openssh
  • Version 5.7
  • Version 5.6
  • Version 5.5
  • Version 5.4
All 66 release lines
  • Every version up to 5.8
  • Version 1.2
  • Version 1.2.1
  • Version 1.2.2
  • Version 1.2.3
  • Version 1.2.27
  • Version 1.3
  • Version 1.5
  • Version 1.5.7
  • Version 1.5.8
  • Version 3.0
  • Version 3.0p1
  • Version 3.0.1
  • Version 3.0.1p1
  • Version 3.0.2
  • Version 3.0.2p1
  • Version 3.1
  • Version 3.1p1
  • Version 3.2
  • Version 3.2.2
  • Version 3.2.2p1
  • Version 3.2.3p1
  • Version 3.3
  • Version 3.3p1
  • Version 3.4
  • Version 3.4p1
  • Version 3.5
  • Version 3.5p1
  • Version 3.6
  • Version 3.6.1
  • Version 3.6.1p1
  • Version 3.6.1p2
  • Version 3.7
  • Version 3.7.1
  • Version 3.7.1p1
  • Version 3.7.1p2
  • Version 3.8
  • Version 3.8.1
  • Version 3.8.1p1
  • Version 3.9
  • Version 3.9.1
  • Version 3.9.1p1
  • Version 4.0
  • Version 4.0p1
  • Version 4.1
  • Version 4.1p1
  • Version 4.2
  • Version 4.2p1
  • Version 4.3
  • Version 4.3p1
  • Version 4.3p2
  • Version 4.4
  • Version 4.4p1
  • Version 4.5
  • Version 4.6
  • Version 4.7
  • Version 4.8
  • Version 4.9
  • Version 5.0
  • Version 5.1
  • Version 5.2
  • Version 5.3
  • Version 5.4
  • Version 5.5
  • Version 5.6
  • Version 5.7

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2011-5000
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2011-5000