CVE-2017-11368
MEDIUM severity · CVSS 6.5 · CWE-617
6.5CVSS MEDIUM
Summary
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.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredLow
User interactionNone
Confidentiality impactNone
Integrity impactNone
Availability impactHigh
Exploit probability (EPSS)2%
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Official patch: https://github.com/krb5/krb5/commit/ffb35baac6981f9e8914f8f3bffd37f284b85970 ↗
Additional information
- NVD record
- https://github.com/krb5/krb5/commit/ffb35baac6981f9e8914f8f3bffd37f284b85970Patch
- http://www.securityfocus.com/bid/100291Advisory
- https://access.redhat.com/errata/RHSA-2018:0666
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4HNWXM6OQU7G23MG7XWIOBRGP43ECLDT/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UBUTXMNZWMVJLQ4NDX5OQFPUVCJRLV3W/