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CVE-2013-4449

17
FAUCET Score

CVE-2013-4449 describes a denial-of-service vulnerability in the rwm overlay of OpenLDAP versions 2.4.23, 2.4.36, and earlier, affecting Debian Linux distributions. An attacker can crash the slapd daemon by unbinding immediately after a search request, leading to a double-free condition. This vulnerability has a CVSS score of 4.3, indicating a medium attack complexity and potential for partial availability impact, with no authentication required. Despite a high FAUCET Risk Score, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
7.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
<= 2.4.36CPE matchmatch criteria
cpe:2.3:a:openldap:openldap:*:*:*:*:*:*:*:*
2.4.6CPE matchmatch criteria
cpe:2.3:a:openldap:openldap:2.4.6:*:*:*:*:*:*:*
2.4.7CPE matchmatch criteria
cpe:2.3:a:openldap:openldap:2.4.7:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.3MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
10.91%
Probability of exploitation in next 30 days
EPSS Percentile
95.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.1091 is in the 95th percentile among its peer group of 19,958 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 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 (2)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: openldap-0:2.3.43-27.el5_10
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: openldap-0:2.4.23-34.el6_5.1
View patch

Vendor Advisories (1)

redhatCVE-2013-4449Moderate

openldap: segfault on certain queries with rwm overlay

Oct 11, 2013

References

kb.juniper.net / InfoCenter/index
kb.juniper.net / InfoCenter/index
rhn.redhat.com / errata/RHSA-2014-0126.html
rhn.redhat.com / errata/RHSA-2014-0206.html
bugzilla.redhat.com / show_bug.cgi
seclists.org / fulldisclosure/2019/Dec/26
seclists.org / bugtraq/2019/Dec/23
support.apple.com / kb/HT210788
tools.cisco.com / security/center/content/CiscoSecurityNotice/CVE-2013-4449
debian.org / security/2015/dsa-3209
mandriva.com / security/advisories
openldap.org / its/index.cgi/Incoming
openwall.com / lists/oss-security/2013/10/19/3
oracle.com / technetwork/topics/security/ovmbulletinjul2016-3090546.html
securityfocus.com / bid/63190
securitytracker.com / id/1029711