CVE-2007-4000 Memory corruption in n/a

What is CVE-2007-4000?

CVE-2007-4000 is a high-severity memory corruption vulnerability in Fedoraproject Fedora, published on 5 Sep 2007. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

The kadm5_modify_policy_internal function in lib/kadm5/srv/svr_policy.c in the Kerberos administration daemon (kadmind) in MIT Kerberos 5 (krb5) 1.5 through 1.6.2 does not properly check return values when the policy does not exist, which might allow remote authenticated users with the "modify policy" privilege to execute arbitrary code via unspecified vectors that trigger a write to an uninitialized pointer.

Weakness: CWE-824

Which versions are affected by CVE-2007-4000?

It affects 2 products.

Products include Fedoraproject Fedora, Mit Kerberos 5.

How do I fix CVE-2007-4000?

Upgrade to a fixed version.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2007-4000 being exploited?

There is no known exploitation of CVE-2007-4000 in the wild and no public exploit code.

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Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2007-4000, GHSA-rjp4-vqhr-2249.