bind-dyndb-ldap: Bind DoS (named hang) by processing DNS query for zone served by bind-dyndb-ldap
Published Feb 26, 2014
4.3
MEDIUMCVSS 2.0
EPSS 2.33%
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.
Affected products
No data.
- ≤ 1.1.0
- 0.1.0
- 0.1.0
- 0.2.0
- 1.0.0
- 1.0.0
- 1.1.0
- 1.1.0
- 1.1.0
No data.
Red Hat Enterprise Linux 6
bind-dyndb-ldap-0:0.2.0-7.el6_2.1
Fixed · RHSA-2012:0683
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | bind-dyndb-ldap-0:0.2.0-7.el6_2.1 | Fixed | RHSA-2012:0683 |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:M/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.33% (0.02325) | 82.87th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.33% (0.02325) | 81.20th | v5 (v2026.06.15) |
| Mar 17, 2025 | 1.51% (0.01509) | 79.89th | v4 (v2025.03.14) |
| Dec 12, 2024 | 1.22% (0.01224) | 85.99th | v3 (v2023.03.01) |
| May 2, 2024 | 1.22% (0.01224) | 85.20th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.22% (0.01224) | 83.19th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.32% (0.01319) | 71.27th | v2 (v2022.01.01) |
| Feb 13, 2023 | 1.32% (0.01319) | 70.74th | v2 (v2022.01.01) |
| Feb 3, 2023 | 1.78% (0.01776) | 76.27th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.32% (0.01319) | 69.22th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.32% (0.01319) | 44.98th | v2 (v2022.01.01) |
References (10)
- http://rhn.redhat.com/errata/RHSA-2012-0683.html vendor-advisoryx_refsource_REDHATPatch
- http://secunia.com/advisories/48901 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://www.openwall.com/lists/oss-security/2012/04/24/15 mailing-listx_refsource_MLIST
- http://www.osvdb.org/81619 vdb-entryx_refsource_OSVDB
- https://access.redhat.com/security/cve/CVE-2012-2134 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=815846 x_refsource_CONFIRMIssue Tracking
- https://git.fedorahosted.org/cgit/bind-dyndb-ldap.git/tree/NEWS x_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2012-2134
- https://www.cve.org/CVERecord?id=CVE-2012-2134
- https://www.redhat.com/archives/freeipa-users/2012-April/msg00144.html mailing-listx_refsource_MLIST
| Link | Providers | Tags |
|---|---|---|
| http://rhn.redhat.com/errata/RHSA-2012-0683.html | vendor-advisoryx_refsource_REDHATPatch | |
| http://secunia.com/advisories/48901 | third-party-advisoryx_refsource_SECUNIAVendor Advisory | |
| http://www.openwall.com/lists/oss-security/2012/04/24/15 | mailing-listx_refsource_MLIST | |
| http://www.osvdb.org/81619 | vdb-entryx_refsource_OSVDB | |
| https://access.redhat.com/security/cve/CVE-2012-2134 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=815846 | x_refsource_CONFIRMIssue Tracking | |
| https://git.fedorahosted.org/cgit/bind-dyndb-ldap.git/tree/NEWS | x_refsource_CONFIRM | |
| https://nvd.nist.gov/vuln/detail/CVE-2012-2134 | ||
| https://www.cve.org/CVERecord?id=CVE-2012-2134 | ||
| https://www.redhat.com/archives/freeipa-users/2012-April/msg00144.html | mailing-listx_refsource_MLIST |
Change history (0)
No recorded changes yet.