The kssl_keytab_is_available function in ssl/kssl.c in OpenSSL before 0.9.8n, when Kerberos is enabled but Kerberos configuration files…

Description

The kssl_keytab_is_available function in ssl/kssl.c in OpenSSL before 0.9.8n, when Kerberos is enabled but Kerberos configuration files cannot be opened, does not check a certain return value, which allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via SSL cipher negotiation, as demonstrated by a chroot installation of Dovecot or stunnel without Kerberos configuration files inside the chroot.

Scores

EPSS (exploitation in 30 days)

7.9% · top 5.3% of all CVEs (4 Nov 2026)

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.3.

Weakness

• n/a
• CWE-20 (opens in a new tab)All about CWE-20 and its CVEs

Affected products

• n/a

  • affected n/a

References (31)

• ADV-2010-0916 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
• 42724 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• 39461 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• oval:org.mitre.oval:def:9856 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
• https://bugzilla.redhat.com/show_bug.cgi?id=569774 (opens in a new tab)x_refsource_CONFIRMx_transferred
• FEDORA-2010-5357 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
• HPSBUX02531 (opens in a new tab)vendor-advisoryx_refsource_HPx_transferred
• oval:org.mitre.oval:def:12260 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
• [oss-security] 20100303 OpenSSL (with KRB5) remote crash - CVE-2010-0433 (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
• [dovecot] 20100219 segfault - (imap|pop3)-login during nessus scan (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
• [syslog-ng-announce] 20110110 syslog-ng Premium Edition 3.0.6a has been released (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
• https://bugzilla.redhat.com/show_bug.cgi?id=567711 (opens in a new tab)x_refsource_CONFIRMx_transferred
• http://www.vmware.com/support/vsphere4/doc/vsp_vc41_u1_rel_notes.html (opens in a new tab)x_refsource_CONFIRMx_transferred
• ADV-2010-0839 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
• http://cvs.openssl.org/chngview?cn=19374 (opens in a new tab)x_refsource_CONFIRMx_transferred
• MDVSA-2010:076 (opens in a new tab)vendor-advisoryx_refsource_MANDRIVAx_transferred
• HPSBUX02517 (opens in a new tab)vendor-advisoryx_refsource_HPx_transferred
• [syslog-ng-announce] 20110110 syslog-ng Premium Edition 3.2.1a has been released (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
• 39932 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• http://www.openssl.org/news/changelog.html (opens in a new tab)x_refsource_CONFIRMx_transferred
• ADV-2010-0933 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
• http://www.vmware.com/security/advisories/VMSA-2011-0003.html (opens in a new tab)x_refsource_CONFIRMx_transferred
• https://kb.bluecoat.com/index?page=content&id=SA50 (opens in a new tab)x_refsource_CONFIRMx_transferred
• 20110211 VMSA-2011-0003 Third party component updates for VMware vCenter Server, vCenter Update Manager, ESXi and ESX (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
• 43311 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• ADV-2010-1216 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
• oval:org.mitre.oval:def:6718 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
• 42733 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• FEDORA-2010-5744 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
• http://aix.software.ibm.com/aix/efixes/security/openssl_advisory.asc (opens in a new tab)x_refsource_CONFIRMx_transferred
• http://groups.google.com/group/mailing.openssl.users/browse_thread/thread/c3e1ab0034ca4b4c/66aa896c3a78b2f7 (opens in a new tab)x_refsource_MISCx_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-2010-0433](https://trackcve.app/badge/CVE-2010-0433.svg)](https://trackcve.app/cve/CVE-2010-0433)

Record last updated 7 Aug 2024, 00:52 UTC.