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…

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.

Scores

EPSS (exploitation in 30 days)

4.2% · top 9.0% of all CVEs (3 Nov 2026)

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The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.0.

Weakness

• n/a
• CWE-310 (opens in a new tab)Other CVEs with CWE-310

Affected products

• n/a

  • affected n/a

References (22)

• MDVSA-2011:025 (opens in a new tab)vendor-advisoryx_refsource_MANDRIVAx_transferred
• 46265 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
• 20111013 VMSA-2011-0012 VMware ESXi and ESX updates to third party libraries and ESX Service Console (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
• 46397 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• ADV-2011-0347 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
• 43260 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• ADV-2011-0333 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
• RHSA-2011:0199 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• 43273 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2011-002.txt (opens in a new tab)x_refsource_CONFIRMx_transferred
• 20110208 MITKRB5-SA-2011-002 KDC denial of service attacks [CVE-2011-0281 CVE-2011-0282 CVE-2011-0283] (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
• 1025037 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
• SUSE-SR:2011:004 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
• http://www.vmware.com/security/advisories/VMSA-2011-0012.html (opens in a new tab)x_refsource_CONFIRMx_transferred
• MDVSA-2011:024 (opens in a new tab)vendor-advisoryx_refsource_MANDRIVAx_transferred
• ADV-2011-0464 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
• 8073 (opens in a new tab)third-party-advisoryx_refsource_SREASONx_transferred
• kerberos-ldap-descriptor-dos(65324) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
• ADV-2011-0330 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
• [kerberos] 20101222 LDAP handle unavailable: Can't contact LDAP server (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
• 43275 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• RHSA-2011:0200 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2011-0281](https://trackcve.app/badge/CVE-2011-0281.svg)](https://trackcve.app/cve/CVE-2011-0281)

Record last updated 6 Aug 2024, 21:51 UTC.