CVE-2022-42898

El análisis sintáctico de PAC en MIT Kerberos 5 (también conocido como krb5) antes de 1.19.4 y 1.20.x antes de 1.20.1 tiene desbordamientos de enteros que pueden conducir a la ejecución remota de código (en KDC, kadmind, o un servidor de aplicaciones GSS o Kerberos) en plataformas de 32 bits (que tienen un desbordamiento de búfer resultante), y causar una denegación de servicio en otras plataformas. Esto ocurre en krb5_pac_parse en lib/krb5/krb/pac.c. Heimdal antes de 7.7.1 tiene "un bug similar".

A vulnerability was found in MIT krb5. This flaw allows an authenticated attacker to cause a KDC or kadmind process to crash by reading beyond the bounds of allocated memory, creating a denial of service. A privileged attacker may similarly be able to cause a Kerberos or GSS application service to crash.

Juraj Somorovsky, Marcel Maehren, Nurullah Erinola, and Robert Merget discovered that the DTLS implementation in the JSSE subsystem of OpenJDK did not properly restrict handshake initiation requests from clients. A remote attacker could possibly use this to cause a denial of service. Markus Loewe discovered that the Java Sound subsystem in OpenJDK did not properly validate the origin of a Soundbank. An attacker could use this to specially craft an untrusted Java application or applet that could load a Soundbank from an attacker controlled remote URL.