CVE-2019-14844
First published: Thu Sep 26 2019(Updated: )
A flaw was found in, Fedora versions of krb5 from 1.16.1 to, including 1.17.x, in the way a Kerberos client could crash the KDC by sending one of the RFC 4556 "enctypes". A remote unauthenticated user could use this flaw to crash the KDC.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| MIT Kerberos 5 | >=1.16.1<=1.17.1 | |
| Fedora | =29 | |
| Fedora | =30 | |
| Fedora | =31 |
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Reference Links
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14844
- https://github.com/krb5/krb5/pull/981
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/54ZYKEJZ77BXZWGF4NEVKC33ESVROEYC/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/N4LS5PIJOCNOUZGLO2OBT6GY334PUOSW/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TDE2QOKK4I4TV4WV74ZQWICZ4HJN2MOK/
- https://security.netapp.com/advisory/ntap-20220325-0003/
Frequently Asked Questions
What is CVE-2019-14844?
CVE-2019-14844 is a vulnerability found in Fedora versions of krb5 from 1.16.1 to including 1.17.x.
How does CVE-2019-14844 impact the Kerberos Key Distribution Center (KDC)?
CVE-2019-14844 can crash the KDC if a remote unauthenticated user sends one of the RFC 4556 "enctypes".
Which software versions are affected by CVE-2019-14844?
CVE-2019-14844 affects Fedora versions 29, 30, and 31, as well as MIT Kerberos 5 versions from 1.16.1 to including 1.17.x.
What is the severity of CVE-2019-14844?
CVE-2019-14844 has a severity rating of 7.5 (high).
How can I fix CVE-2019-14844?
To fix CVE-2019-14844, update to a version of krb5 that is not vulnerable.
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- agent/software-canonical-lookup-request
- vendor/mit
- canonical/mit kerberos 5
- version/mit kerberos 5/1.16.1
- version/mit kerberos 5/1.17.1
- vendor/fedoraproject
- canonical/fedora
- version/fedora/29
- version/fedora/30
- version/fedora/31