Heimdal Kerberos vulnerable to remotely triggered NULL pointer dereference

guest · Jan 14, 2023

Vulnerability Note VU#730793
Original Release Date: 2022-10-07 | Last Revised: 2023-01-12

Overview
The Heimdal Software Kerberos 5 implementation is vulnerable to a null pointer dereferance. An attacker with network access to an application that depends on the vulnerable code path can cause the application to crash.
Description
CVE-2022-3116 A flawed logical condition in lib/gssapi/spnego/accept_sec_context.c allows a malicious actor to remotely trigger a NULL pointer dereference using a crafted negTokenInit token.
Impact
An attacker can use a specially crafted network packet to cause a vulnerable application to crash.
Click to expand...

Solution
The latest version of code in the Heimdal master branch fixes the issue. However, the current stable release 7.7.0 does not include the fix.
Click to expand...

Log in or Sign up

Heimdal Kerberos vulnerable to remotely triggered NULL pointer dereference

guest Guest

Log in or Sign up

Heimdal Kerberos vulnerable to remotely triggered NULL pointer dereference

guest Guest

Useful Searches