Vulnerability identifier: #VU23672

Vulnerability risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-16555

CWE-ID: CWE-400

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Build Failure Analyzer
Web applications / Modules and components for CMS

Vendor: Jenkins

Description

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

The vulnerability exists due to a user-supplied regular expression is processed in a way that is not interruptible. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Build Failure Analyzer: 1.2.0 - 1.24.1

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External links
http://jenkins.io/security/advisory/2019-12-17/#SECURITY-1651

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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.