#VU53775 Stack-based buffer overflow


Published: 2021-06-03

Vulnerability identifier: #VU53775

Vulnerability risk: Medium

CVSSv3.1:

CVE-ID: CVE-2020-35452

CWE-ID: CWE-121

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Apache HTTP Server
Server applications / Web servers

Vendor: Apache Foundation

Description

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

The vulnerability exists due to a boundary error when processing Digest nounces in mod_auth_digest. A remote unauthenticated attacker can send a specially crafted HTTP request, trigger stack overflow by one nul byte and crash the server.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Apache HTTP Server: 2.4 - 2.4.46


CPE

External links
http://downloads.apache.org/httpd/CHANGES_2.4.48


Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?


Latest bulletins with this vulnerability