CVE & CISA-KEV Catalog

CVE-2014-5355

MEDIUMEPSS 91th pctl
5.0
CVSS v2
NVD

Description

MIT Kerberos 5 (aka krb5) through 1.13.1 incorrectly expects that a krb5_read_message data field is represented as a string ending with a '\0' character, which allows remote attackers to (1) cause a denial of service (NULL pointer dereference) via a zero-byte version string or (2) cause a denial of service (out-of-bounds read) by omitting the '\0' character, related to appl/user_user/server.c and lib/krb5/krb/recvauth.c.

How to fix

Remediation Available
krb5Debian
Fixed in:1.12.1+dfsg-18CVE-2014-5355
Fixed in:1.12.1+dfsg-18CVE-2014-5355
Fixed in:1.12.1+dfsg-18CVE-2014-5355
Fixed in:1.12.1+dfsg-18CVE-2014-5355
krb5Ubuntu
Fixed in:1.12+dfsg-2ubuntu5.2USN-2810-1
krb5-admin-serverUbuntu
Fixed in:1.12+dfsg-2ubuntu5.2USN-2810-1
krb5-kdcUbuntu
Fixed in:1.12+dfsg-2ubuntu5.2USN-2810-1
krb5-kdc-ldapUbuntu
Fixed in:1.12+dfsg-2ubuntu5.2USN-2810-1
krb5-otpUbuntu
Fixed in:1.12+dfsg-2ubuntu5.2USN-2810-1
krb5-pkinitUbuntu
Fixed in:1.12+dfsg-2ubuntu5.2USN-2810-1
krb5-userUbuntu
Fixed in:1.12+dfsg-2ubuntu5.2USN-2810-1
libgssapi-krb5-2Ubuntu
Fixed in:1.12+dfsg-2ubuntu5.2USN-2810-1
libgssrpc4Ubuntu
Fixed in:1.12+dfsg-2ubuntu5.2USN-2810-1
libk5crypto3Ubuntu
Fixed in:1.12+dfsg-2ubuntu5.2USN-2810-1
libkadm5clnt-mit9Ubuntu
Fixed in:1.12+dfsg-2ubuntu5.2USN-2810-1
libkdb5-7Ubuntu
Fixed in:1.12+dfsg-2ubuntu5.2USN-2810-1
libkrad0Ubuntu
Fixed in:1.12+dfsg-2ubuntu5.2USN-2810-1
libkrb5-3Ubuntu
Fixed in:1.12+dfsg-2ubuntu5.2USN-2810-1
libkrb5support0Ubuntu
Fixed in:1.12+dfsg-2ubuntu5.2USN-2810-1

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

4.59%probability of exploitation in 30 days
91stpercentile

High risk: more likely to be exploited than 91% 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.