Multiple integer underflows in the (1) AES and (2) RC4 decryption functionality in the crypto library in MIT Kerberos 5 (aka krb5) 1.3…

Description

Multiple integer underflows in the (1) AES and (2) RC4 decryption functionality in the crypto library in MIT Kerberos 5 (aka krb5) 1.3 through 1.6.3, and 1.7 before 1.7.1, allow remote attackers to cause a denial of service (daemon crash) or possibly execute arbitrary code by providing ciphertext with a length that is too short to be valid.

Scores

EPSS (exploitation in 30 days)

7.6% · top 5.5% of all CVEs (6 Nov 2026)

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 10.0.

Weakness

• n/a
• CWE-189 (opens in a new tab)All about CWE-189 and its CVEs

Affected products

• n/a

  • affected n/a

References (31)

• APPLE-SA-2010-06-15-1 (opens in a new tab)vendor-advisoryx_refsource_APPLEx_transferred
• 38140 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• ADV-2010-0096 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
• http://support.avaya.com/css/P8/documents/100074869 (opens in a new tab)x_refsource_CONFIRMx_transferred
• 38126 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• DSA-1969 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
• ADV-2010-1481 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
• USN-881-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
• SSRT100495 (opens in a new tab)vendor-advisoryx_refsource_HPx_transferred
• http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2009-004.txt (opens in a new tab)x_refsource_CONFIRMx_transferred
• FEDORA-2010-0503 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
• MDVSA-2010:006 (opens in a new tab)vendor-advisoryx_refsource_MANDRIVAx_transferred
• 1023440 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
• 38080 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• 275530 (opens in a new tab)vendor-advisoryx_refsource_SUNALERTx_transferred
• 1021779 (opens in a new tab)vendor-advisoryx_refsource_SUNALERTx_transferred
• oval:org.mitre.oval:def:8192 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
• 38203 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• https://bugzilla.redhat.com/show_bug.cgi?id=545015 (opens in a new tab)x_refsource_CONFIRMx_transferred
• FEDORA-2010-0515 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
• http://support.apple.com/kb/HT4188 (opens in a new tab)x_refsource_CONFIRMx_transferred
• 40220 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• 38108 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• 37749 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
• oval:org.mitre.oval:def:11272 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
• RHSA-2010:0029 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• RHSA-2010:0095 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• oval:org.mitre.oval:def:7357 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
• 38696 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• ADV-2010-0129 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
• 38184 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_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-2009-4212](https://trackcve.app/badge/CVE-2009-4212.svg)](https://trackcve.app/cve/CVE-2009-4212)

Record last updated 7 Aug 2024, 06:54 UTC.