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CVE-2012-3429

20
FAUCET Score

CVE-2012-3429 describes a denial-of-service vulnerability in bind-dyndb-ldap versions 1.1.0rc1 and earlier. Specifically, the dns_to_ldap_dn_escape function fails to properly escape distinguished names containing a "$" character, allowing a malicious remote DNS server to hang the 'named' service. This vulnerability has a CVSS score of 5.0, indicating a low severity, with an attack vector over the network requiring low attack complexity and resulting in partial availability impact. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.1.0CPE matchmatch criteria
cpe:2.3:a:martin_nagy:bind-dyndb-ldap:*:rc1:*:*:*:*:*:*
0.1.0CPE matchmatch criteria
cpe:2.3:a:martin_nagy:bind-dyndb-ldap:0.1.0:a1:*:*:*:*:*:*
0.1.0CPE matchmatch criteria
cpe:2.3:a:martin_nagy:bind-dyndb-ldap:0.1.0:b:*:*:*:*:*:*
0.2.0CPE matchmatch criteria
cpe:2.3:a:martin_nagy:bind-dyndb-ldap:0.2.0:*:*:*:*:*:*:*
1.0.0CPE matchmatch criteria
cpe:2.3:a:martin_nagy:bind-dyndb-ldap:1.0.0:b1:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

AV:N/AC:L/Au:N/C:N/I:N/A:P

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
3.07%
Probability of exploitation in next 30 days
EPSS Percentile
86.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0307 is in the 81st percentile among its peer group of 23,705 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: bind-dyndb-ldap-0:1.1.0-0.9.b1.el6_3.1
View patch

Vendor Advisories (1)

redhatCVE-2012-3429Important

bind-dyndb-ldap: named DoS via DNS query with $ in name

Aug 1, 2012

References

git.fedorahosted.org / cgit/bind-dyndb-ldap.git/commit
ExploitPatch
rhn.redhat.com / errata/RHSA-2012-1139.html
bugzilla.redhat.com / show_bug.cgi
secunia.com / advisories/50086
Vendor Advisory
secunia.com / advisories/50159
Vendor Advisory
exchange.xforce.ibmcloud.com / vulnerabilities/77391
openwall.com / lists/oss-security/2012/08/02/5
securityfocus.com / bid/54787
securitytracker.com / id
Patch