Vulnerability Name:

CVE-2012-3429 (CCN-77391)

Assigned:2012-08-01
Published:2012-08-01
Updated:2017-08-29
Summary: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.
CVSS v3 Severity:5.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Low
CVSS v2 Severity:5.0 Medium (CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P)
3.7 Low (Temporal CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P/E:U/RL:OF/RC:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
5.0 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P)
3.7 Low (CCN Temporal CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P/E:U/RL:OF/RC:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
4.3 Medium (REDHAT CVSS v2 Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P)
3.2 Low (REDHAT Temporal CVSS v2 Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P/E:U/RL:OF/RC:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
Vulnerability Type:CWE-20
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2012-3429

Source: CCN
Type: Bind DynDB LDAP GIT Repository
Fix and harden DNS-to-LDAP name conversion. Fixes CVE-2012-3429.

Source: CONFIRM
Type: Exploit, Patch
http://git.fedorahosted.org/cgit/bind-dyndb-ldap.git/commit/?id=f345805c73c294db42452ae966c48fbc36c48006

Source: CCN
Type: RHSA-2012-1139
Important: bind-dyndb-ldap security update

Source: REDHAT
Type: UNKNOWN
RHSA-2012:1139

Source: CCN
Type: SA50086
bind-dyndb-ldap DN Escaping Denial of Service Vulnerability

Source: SECUNIA
Type: Vendor Advisory
50086

Source: SECUNIA
Type: Vendor Advisory
50159

Source: MLIST
Type: UNKNOWN
[oss-security] 20120802 bind-dyndb-ldap DoS CVE-2012-3429

Source: CCN
Type: OSVDB ID: 84437
bind-dyndb-ldap src/ldap_convert.c dns_to_ldap_dn_escape() Function LDAP Query DN Value Escaping Remote DoS

Source: BID
Type: UNKNOWN
54787

Source: CCN
Type: BID-54787
Bind DynDB LDAP CVE-2012-3429 Package Remote Denial of Service Vulnerability

Source: SECTRACK
Type: Patch
1027341

Source: MISC
Type: UNKNOWN
https://bugzilla.redhat.com/show_bug.cgi?id=842466

Source: XF
Type: UNKNOWN
binddyndbldap-dnstoldapdnescape-dos(77391)

Source: XF
Type: UNKNOWN
binddyndbldap-dnstoldapdnescape-dos(77391)

Vulnerable Configuration:Configuration 1:
  • cpe:/a:martin_nagy:bind-dyndb-ldap:0.1.0:a1:*:*:*:*:*:*
  • OR cpe:/a:martin_nagy:bind-dyndb-ldap:0.1.0:b:*:*:*:*:*:*
  • OR cpe:/a:martin_nagy:bind-dyndb-ldap:0.2.0:*:*:*:*:*:*:*
  • OR cpe:/a:martin_nagy:bind-dyndb-ldap:1.0.0:b1:*:*:*:*:*:*
  • OR cpe:/a:martin_nagy:bind-dyndb-ldap:1.0.0:rc1:*:*:*:*:*:*
  • OR cpe:/a:martin_nagy:bind-dyndb-ldap:1.1.0:a1:*:*:*:*:*:*
  • OR cpe:/a:martin_nagy:bind-dyndb-ldap:1.1.0:a2:*:*:*:*:*:*
  • OR cpe:/a:martin_nagy:bind-dyndb-ldap:1.1.0:b1:*:*:*:*:*:*
  • OR cpe:/a:martin_nagy:bind-dyndb-ldap:1.1.0:b2:*:*:*:*:*:*
  • OR cpe:/a:martin_nagy:bind-dyndb-ldap:*:rc1:*:*:*:*:*:* (Version <= 1.1.0)

    • Configuration RedHat 1:
  • cpe:/o:redhat:enterprise_linux:6:*:*:*:*:*:*:*

    • Configuration RedHat 2:
  • cpe:/o:redhat:enterprise_linux:6::server:*:*:*:*:*

    • Configuration RedHat 3:
  • cpe:/o:redhat:enterprise_linux:6::workstation:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.mitre.oval:def:23991
    P
    		ELSA-2012:1139: bind-dyndb-ldap security update (Important)
    2014-05-26
    oval:org.mitre.oval:def:21570
    P
    		RHSA-2012:1139: bind-dyndb-ldap security update (Important)
    2014-02-24
    oval:com.redhat.rhsa:def:20121139
    P
    		RHSA-2012:1139: bind-dyndb-ldap security update (Important)
    2012-08-03
    BACK
    martin_nagy bind-dyndb-ldap 0.1.0 a1
    martin_nagy bind-dyndb-ldap 0.1.0 b
    martin_nagy bind-dyndb-ldap 0.2.0
    martin_nagy bind-dyndb-ldap 1.0.0 b1
    martin_nagy bind-dyndb-ldap 1.0.0 rc1
    martin_nagy bind-dyndb-ldap 1.1.0 a1
    martin_nagy bind-dyndb-ldap 1.1.0 a2
    martin_nagy bind-dyndb-ldap 1.1.0 b1
    martin_nagy bind-dyndb-ldap 1.1.0 b2
    martin_nagy bind-dyndb-ldap * rc1