Vulnerability identifier: #VU20386
Vulnerability risk: Medium
Exploitation vector: Network
Exploit availability: No
Vendor: Apache Foundation
The vulnerability allows a remote attacker to perform denial of service (DoS) attack.
The vulnerability exists due to a use-after-free error within the mod_http2 when handling connection shutdown. A remote attacker can send specially crafted requests to the affected server and make the mod_http2 to read memory that was already freed.
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Vulnerable software versions
Apache HTTP Server: 2.4.18 - 2.4.39
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.