The handle_connection_error function in ldap_helper.c in bind-dyndb-ldap before 1.1.0rc1 does not properly handle LDAP query errors, which…

Description

The handle_connection_error function in ldap_helper.c in bind-dyndb-ldap before 1.1.0rc1 does not properly handle LDAP query errors, which allows remote attackers to cause a denial of service (infinite loop and named server hang) via a non-alphabet character in the base DN in an LDAP search DNS query.

Scores

EPSS (exploitation in 30 days)

2.3% · top 17% of all CVEs (2 Nov 2026)

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

Weakness

• n/a
• CWE-399 (opens in a new tab)

Affected products

• n/a

  • affected n/a

References (7)

• 48901 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• [Freeipa-users] 20120424 named-dyndb-ldap looses connection when the LDAP server is under high load (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
• https://bugzilla.redhat.com/show_bug.cgi?id=815846 (opens in a new tab)x_refsource_CONFIRMx_transferred
• https://git.fedorahosted.org/cgit/bind-dyndb-ldap.git/tree/NEWS (opens in a new tab)x_refsource_CONFIRMx_transferred
• RHSA-2012:0683 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• 81619 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred
• [oss-security] 20140424 Re: CVE Request -- bind-dyndb-ldap: Bind DoS (named hang) by processing DNS query for zone served by bind-dyndb-ldap (opens in a new tab)mailing-listx_refsource_MLISTx_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)

Record last updated 6 Aug 2024, 19:26 UTC.