CVE-2017-11368 Denial of service in n/a

What is CVE-2017-11368?

CVE-2017-11368 is a medium-severity denial of service vulnerability in Fedoraproject Fedora, published on 9 Aug 2017. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

In MIT Kerberos 5 (aka krb5) 1.7 and later, an authenticated attacker can cause a KDC assertion failure by sending invalid S4U2Self or S4U2Proxy requests.

Weakness: CWE-617

Which versions are affected by CVE-2017-11368?

It affects 3 products.

Products include Fedoraproject Fedora, Mit Kerberos, Mit Kerberos 5.

How do I fix CVE-2017-11368?

Apply the vendor's patch.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2017-11368 being exploited?

There is no known exploitation of CVE-2017-11368 in the wild and no public exploit code.

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• CVE-2024-4947 Google Chromium V8 Type Confusion Exploited Critical 9.6
• CVE-2024-4671 Google Chromium Visuals Use-After-Free Exploited Critical 9.6

All Fedoraproject Fedora vulnerabilities

Sources

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

Also known as DEBIAN-CVE-2017-11368, DLA-1058-1, GHSA-8f95-9vr9-hxf2, MGASA-2017-0256, UBUNTU-CVE-2017-11368.