Debian update for tomcat9



Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2021-42340
CWE-ID CWE-400
Exploitation vector Network
Public exploit N/A
Vulnerable software
 tomcat9 (Debian package)
Operating systems & Components / Operating system package or component

Vendor Debian

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Resource exhaustion

EUVDB-ID: #VU57389

Risk: Medium

CVSSv4.0: 6.6 [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-2021-42340

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform DoS attack on the target system.

The vulnerability exists due memory leak when processing HTTP connections. A remote attacker can initiate multiple HTTP connections with the web server and consume all available memory on the system.

Mitigation

Update tomcat9 package to version 9.0.43-2~deb11u3.

Vulnerable software versions

tomcat9 (Debian package): 9.0.13-1 - 9.0.43-2~deb11u2

CPE2.3 External links

https://www.debian.org/security/2021/dsa-5009


Q & A

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.



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