CVE & CISA-KEV Catalog

CVE-2011-0281

MEDIUMEPSS 90th pctl
5.0
CVSS v2
NVD

Description

The unparse implementation in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.6.x through 1.9, when an LDAP backend is used, allows remote attackers to cause a denial of service (file descriptor exhaustion and daemon hang) via a principal name that triggers use of a backslash escape sequence, as demonstrated by a \n sequence.

How to fix

Remediation Available
krb5Debian
Fixed in:1.8.3+dfsg-5CVE-2011-0281
Fixed in:1.8.3+dfsg-5CVE-2011-0281
Fixed in:1.8.3+dfsg-5CVE-2011-0281
Fixed in:1.8.3+dfsg-5CVE-2011-0281

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

4.20%probability of exploitation in 30 days
90thpercentile

Elevated risk: more likely to be exploited than 90% of all known CVEs.

References

Related Vulnerabilities

Other CWE-310 (Cryptographic Issues) vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2014-3566Low3.4100%-Fix
CVE-2015-4000Low3.7100%-Fix
CVE-2015-0204Medium4.399%-Fix
CVE-2016-2107Medium5.989%-Fix
CVE-2016-0800Medium5.982%-Fix
CVE-2014-8684Critical9.872%--
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-29.