NULL pointer dereference in crypto - CVE-2020-29652

 

NULL pointer dereference in crypto - CVE-2020-29652

Published: November 21, 2022


Vulnerability identifier: #VU69449
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2020-29652
CWE-ID: CWE-476
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: Google
Affected software:
crypto

Detailed vulnerability description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error when processing an authentication request message for the “gssapi-with-mic” method. A remote attacker can pass specially crafted data to the application and perform a denial of service (DoS) attack.


How to mitigate CVE-2020-29652

Install updates from vendor's website.

Sources