Vulnerability identifier: #VU64026
Vulnerability risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-252
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
Undertow
Server applications /
Web servers
Vendor:
Description
The vulnerability allows a remote attacker to perform a denial of service attack.
The vulnerability exists due to EAP 7 improperly sends two response packets, and those packets have the reuse flag set even though JBoss EAP closes the connection. A remote attacker can trigger the vulnerability to perform a denial of service attack.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
External links
http://access.redhat.com/errata/RHSA-2022:4918
http://bugzilla.redhat.com/show_bug.cgi?id=2073890
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.