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Vigil@nce - MIT krb5: assertion error via Old Encryption S4U2Self Request

February 2019 by Vigil@nce

This bulletin was written by Vigil@nce : https://vigilance.fr/offer/Computer-vulnerability-database-and-alert

SYNTHESIS OF THE VULNERABILITY

 Impacted products: Debian, Fedora, MIT krb5, openSUSE Leap,
Solaris, SUSE Linux Enterprise Desktop, SLES.
 Severity: 2/4.
 Consequences: denial of service on service, denial of service on
client.
 Provenance: intranet client.
 Confidence: confirmed by the editor (5/5).
 Creation date: 27/12/2018.

DESCRIPTION OF THE VULNERABILITY

An attacker can force an assertion error via Old Encryption
S4U2Self Request of MIT krb5, in order to trigger a denial of
service.

ACCESS TO THE FULL VIGIL@NCE BULLETIN

https://vigilance.fr/vulnerability/MIT-krb5-assertion-error-via-Old-Encryption-S4U2Self-Request-28099


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