HOMEVULNERABILITIESCVE-2014-4343
HIGH

CVE-2014-4343

CWE-415Published: August 14, 2014· Updated: Jun 17, 2026

7.6
CVSS v3.1

Official Description

Double free vulnerability in the init_ctx_reselect function in the SPNEGO initiator in lib/gssapi/spnego/spnego_mech.c in MIT Kerberos 5 (aka krb5) 1.10.x through 1.12.x before 1.12.2 allows remote attackers to cause a denial of service (memory corruption) or possibly execute arbitrary code via network traffic that appears to come from an intended acceptor, but specifies a security mechanism different from the one proposed by the initiator.

NVD Source

Technical Analysis

CVE-2014-4343 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityHigh
Privileges Req.
User Interaction
Scope
Impact
ConfidentialityC
IntegrityC
AvailabilityC
AV:N/AC:H/Au:N/C:C/I:C/A:C

Affected Vendors & Products

Debian1 product(s)
debian linux
mit1 product(s)
kerberos 5
Red Hat4 product(s)
enterprise linux desktopenterprise linux hpc nodeenterprise linux serverenterprise linux workstation
Source: NVD CPE · 18 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://github.com/krb5/krb5/commit/f18ddf5d82de0ab7591a36e465bc24225776940f
PATCHhttps://github.com/krb5/krb5/commit/f18ddf5d82de0ab7591a36e465bc24225776940f
ADVISORYhttp://krbdev.mit.edu/rt/Ticket/Display.html?id=7969
ADVISORYhttp://rhn.redhat.com/errata/RHSA-2015-0439.html
ADVISORYhttp://security.gentoo.org/glsa/glsa-201412-53.xml
ADVISORYhttp://www.debian.org/security/2014/dsa-3000
ADVISORYhttp://krbdev.mit.edu/rt/Ticket/Display.html?id=7969
ADVISORYhttp://rhn.redhat.com/errata/RHSA-2015-0439.html
ADVISORYhttp://security.gentoo.org/glsa/glsa-201412-53.xml
ADVISORYhttp://www.debian.org/security/2014/dsa-3000

All References (36)

→
http://advisories.mageia.org/MGASA-2014-0345.html
→
http://aix.software.ibm.com/aix/efixes/security/nas_advisory1.asc
→
http://krbdev.mit.edu/rt/Ticket/Display.html?id=7969Issue Tracking · Third Party Advisory
→
http://lists.fedoraproject.org/pipermail/package-announce/2014-August/136360.html
→
http://rhn.redhat.com/errata/RHSA-2015-0439.htmlThird Party Advisory
→
http://secunia.com/advisories/59102
→
http://secunia.com/advisories/60082
→
http://secunia.com/advisories/60448
→
http://secunia.com/advisories/61052
→
http://security.gentoo.org/glsa/glsa-201412-53.xmlThird Party Advisory
→
http://support.f5.com/kb/en-us/solutions/public/15000/500/sol15553.html
→
http://www.debian.org/security/2014/dsa-3000Third Party Advisory
→
http://www.osvdb.org/109390
→
http://www.securityfocus.com/bid/69159
→
http://www.securitytracker.com/id/1030706

Quick Facts

CVE IDCVE-2014-4343
CVSS Score7.6 / 10
SeverityHIGH
WeaknessCWE-415
CISA KEVNo
Affected3 vendor(s)
PublishedAug 14, 2014

Related CVEs (CWE-415)

CVE-2018-0101
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CVE-2017-5334
9.8
CVE-2021-25907
9.8
CVE-2017-14952
9.8
CVE-2016-6912
9.8
CVE-2017-1000231
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2014-4343 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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