The dns_to_ldap_dn_escape function in src/ldap_convert.c in bind-dyndb-ldap 1.1.0rc1 and earlier does not properly escape distinguished…

Description

The dns_to_ldap_dn_escape function in src/ldap_convert.c in bind-dyndb-ldap 1.1.0rc1 and earlier does not properly escape distinguished names (DN) for LDAP queries, which allows remote DNS servers to cause a denial of service (named service hang) via a "$" character in a DN in a DNS query.

Scores

EPSS (exploitation in 30 days)

3.1% · top 12% of all CVEs (3 Nov 2026)

Loading the EPSS history…

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

Weakness

• n/a
• CWE-20 (opens in a new tab)

Affected products

• n/a

  • affected n/a

References (9)

• 1027341 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
• http://git.fedorahosted.org/cgit/bind-dyndb-ldap.git/commit/?id=f345805c73c294db42452ae966c48fbc36c48006 (opens in a new tab)x_refsource_CONFIRMx_transferred
• RHSA-2012:1139 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• binddyndbldap-dnstoldapdnescape-dos(77391) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
• 50159 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• 50086 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• [oss-security] 20120802 bind-dyndb-ldap DoS CVE-2012-3429 (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
• https://bugzilla.redhat.com/show_bug.cgi?id=842466 (opens in a new tab)x_refsource_MISCx_transferred
• 54787 (opens in a new tab)vdb-entryx_refsource_BIDx_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, 20:05 UTC.