CVE & CISA-KEV Catalog

CVE-2014-4343

HIGHEPSS 93th pctl
7.6
CVSS v2
NVD

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.

CWE-415

How to fix

Remediation Available
krb5Debian
Fixed in:1.12.1+dfsg-5CVE-2014-4343
Fixed in:1.12.1+dfsg-5CVE-2014-4343
Fixed in:1.12.1+dfsg-5CVE-2014-4343
Fixed in:1.12.1+dfsg-5CVE-2014-4343
krb5Ubuntu
Fixed in:1.12+dfsg-2ubuntu4.2USN-2310-1
krb5-admin-serverUbuntu
Fixed in:1.12+dfsg-2ubuntu4.2USN-2310-1
krb5-kdcUbuntu
Fixed in:1.12+dfsg-2ubuntu4.2USN-2310-1
krb5-kdc-ldapUbuntu
Fixed in:1.12+dfsg-2ubuntu4.2USN-2310-1
krb5-otpUbuntu
Fixed in:1.12+dfsg-2ubuntu4.2USN-2310-1
krb5-pkinitUbuntu
Fixed in:1.12+dfsg-2ubuntu4.2USN-2310-1
krb5-userUbuntu
Fixed in:1.12+dfsg-2ubuntu4.2USN-2310-1
libgssapi-krb5-2Ubuntu
Fixed in:1.12+dfsg-2ubuntu4.2USN-2310-1
libgssrpc4Ubuntu
Fixed in:1.12+dfsg-2ubuntu4.2USN-2310-1
libk5crypto3Ubuntu
Fixed in:1.12+dfsg-2ubuntu4.2USN-2310-1
libkadm5clnt-mit9Ubuntu
Fixed in:1.12+dfsg-2ubuntu4.2USN-2310-1
libkadm5srv-mit9Ubuntu
Fixed in:1.12+dfsg-2ubuntu4.2USN-2310-1
libkdb5-7Ubuntu
Fixed in:1.12+dfsg-2ubuntu4.2USN-2310-1
libkrad0Ubuntu
Fixed in:1.12+dfsg-2ubuntu4.2USN-2310-1
libkrb5-3Ubuntu
Fixed in:1.12+dfsg-2ubuntu4.2USN-2310-1
libkrb5support0Ubuntu
Fixed in:1.12+dfsg-2ubuntu4.2USN-2310-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

6.42%probability of exploitation in 30 days
93rdpercentile

High risk: more likely to be exploited than 93% of all known CVEs.

References

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-06.