The add_to_history function in svr_principal.c in libkadm5srv for MIT Kerberos 5 (krb5) up to 1.3.5, when performing a password change, does not properly track the password policy's history count and the maximum number of keys, which can cause an array index out-of-bounds error and may allow authenticated users to execute arbitrary code via a heap-based buffer overflow.

Threat-Mapped Scoring

Score: 3.25

Priority: P2 - Serious (High)

• S1 – Steal Customer Account Information
• S9 – Sabotage of System/App (+0.25 bonus)

EPSS

Score: 0.00088
Percentile: 0.26274

CVSS Scoring

Mapped CWE(s)

• CWE-787 : Out-of-bounds Write

Affected Products

• cpe:2.3:a:mit:kerberos_5:*:*:*:*:*:*:*:*

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