CVE-2015-8629

Severity: medium (CVSS 5.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 3.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2016-02-13 · updated 2026-06-17
Weakness: CWE-125

Description

The xdr_nullstring function in lib/kadm5/kadm_rpc_xdr.c in kadmind in MIT Kerberos 5 (aka krb5) before 1.13.4 and 1.14.x before 1.14.1 does not verify whether '\0' characters exist as expected, which allows remote authenticated users to obtain sensitive information or cause a denial of service (out-of-bounds read) via a crafted string.

Affected products

Debian Linux: 7.0, 8.0
MIT Kerberos 5: before 1.13.4; from 1.14 before 1.14.1 — fixed in 1.13.4, 1.14.1
openSUSE Leap: 42.1
Opensuse: 13.2
Oracle Corporation Oracle Linux: 6, 7
Oracle Corporation Solaris Operating System: 10, 11.3
RedHat Enterprise Linux Desktop: 6.0, 7.0
RedHat Enterprise Linux Eus: 6.7, 7.2, 7.3, 7.4, 7.5, 7.6 (+1)
RedHat Enterprise Linux Server: 6.0, 7.0
RedHat Enterprise Linux Server Aus: 7.2, 7.3, 7.4, 7.6, 7.7
RedHat Enterprise Linux Server Tus: 7.2, 7.3, 7.6, 7.7
RedHat Enterprise Linux Workstation: 6.0, 7.0

How to fix

Upgrade to a fixed version: MIT Kerberos 5 1.13.4, 1.14.1. Check the vendor advisory for mitigations.

References

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