{"id":"CVE-2012-3429","aliases":["EUVD-2012-3396","GHSA-m6m8-g76c-567c","RHSA-2012:1139"],"status":"published","title":"The dns_to_ldap_dn_escape function in src/ldap_convert.c in bind-dyndb-ldap 1.1.0rc1 and earlier...","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.","severity":{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.03072,"percentile":0.8774,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-20"],"published":"2012-08-07T21:00:00Z","modified":"2026-06-26T10:19:25Z","fixes":[{"ecosystem":"Red Hat:enterprise_linux:6::server","package":"bind-dyndb-ldap","fixed_in":["0:1.1.0-0.9.b1.el6_3.1"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:6::server","package":"bind-dyndb-ldap-debuginfo","fixed_in":["0:1.1.0-0.9.b1.el6_3.1"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:6::workstation","package":"bind-dyndb-ldap","fixed_in":["0:1.1.0-0.9.b1.el6_3.1"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:6::workstation","package":"bind-dyndb-ldap-debuginfo","fixed_in":["0:1.1.0-0.9.b1.el6_3.1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::server","package":"bind-dyndb-ldap","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:1.1.0-0.9.b1.el6_3.1"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::server","package":"bind-dyndb-ldap-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:1.1.0-0.9.b1.el6_3.1"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::workstation","package":"bind-dyndb-ldap","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:1.1.0-0.9.b1.el6_3.1"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::workstation","package":"bind-dyndb-ldap-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:1.1.0-0.9.b1.el6_3.1"}]}]}],"products":[{"vendor":"martin_nagy","product":"bind-dyndb-ldap"}],"references":[{"url":"http://www.securitytracker.com/id?1027341","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred","Patch"]},{"url":"http://git.fedorahosted.org/cgit/bind-dyndb-ldap.git/commit/?id=f345805c73c294db42452ae966c48fbc36c48006","tags":["x_refsource_CONFIRM","x_transferred","Exploit","Patch"]},{"url":"http://rhn.redhat.com/errata/RHSA-2012-1139.html","tags":["vendor-advisory","x_refsource_REDHAT","x_transferred"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/77391","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"http://secunia.com/advisories/50159","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","Vendor Advisory"]},{"url":"http://secunia.com/advisories/50086","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","Vendor Advisory"]},{"url":"http://www.openwall.com/lists/oss-security/2012/08/02/5","tags":["mailing-list","x_refsource_MLIST","x_transferred"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=842466","tags":["x_refsource_MISC","x_transferred","report"]},{"url":"http://www.securityfocus.com/bid/54787","tags":["vdb-entry","x_refsource_BID","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2012-3429","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-m6m8-g76c-567c"},{"url":"https://access.redhat.com/errata/RHSA-2012:1139","tags":["advisory"]},{"url":"https://access.redhat.com/security/updates/classification/#important","tags":["article"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2012/rhsa-2012_1139.json","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2012-3429","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2012-3429","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2012-3429","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.","status":"published","published":"2012-08-07T21:00:00Z","modified":"2024-08-06T20:05:12.473Z","updated_at":"2026-11-02T14:34:50.615647Z"}],"euvd":[{"id":"EUVD-2012-3396","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 \"$\" character in a DN in a DNS query.","status":"published","published":"2012-08-07T21:00:00Z","modified":"2024-08-06T20:05:12Z","updated_at":"2026-11-03T01:56:10.882899Z"}],"ghsa":[{"id":"GHSA-m6m8-g76c-567c","title":"The dns_to_ldap_dn_escape function in src/ldap_convert.c in bind-dyndb-ldap 1.1.0rc1 and earlier...","description":"The dns_to_ldap_dn_escape function in src/ldap_convert.c in bind-dyndb-ldap 1.1.0rc1 and earlier does not properly escape distinguished names (DN) for LDAP queries, which allows remote DNS servers to cause a denial of service (named service hang) via a \"$\" character in a DN in a DNS query.","status":"published","published":"2022-05-17T01:44:02Z","modified":"2023-02-03T05:05:16Z","cwes":["CWE-20"],"updated_at":"2026-11-02T14:53:42.900002Z"}],"nvd":[{"id":"CVE-2012-3429","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.","status":"published","published":"2012-08-07T21:55:01.983Z","modified":"2026-06-16T23:43:12.48Z","cvss":[{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:02:15.188652Z"}],"osv":[{"id":"RHSA-2012:1139","title":"Red Hat Security Advisory: bind-dyndb-ldap security update","status":"published","published":"2024-09-15T20:08:39Z","modified":"2026-06-26T10:19:25Z","updated_at":"2026-11-02T15:53:01.495018Z"}]}}