Vulnerability identifier: #VU14612

Vulnerability risk: Low

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-2018-1999044

CWE-ID: CWE-835

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Jenkins
Server applications / Application servers

Vendor: Jenkins

Description

The vulnerability allows a remote attacker to cause DoS condition on the target system.

The vulnerability exists due to an infinite loop in CronTab.java. A remote attacker can have a request handling thread, trigger infinite loop and cause the service to crash.

Mitigation
The vulnerability has been fixed in the versions 2.138, 2.121.3.

Vulnerable software versions

Jenkins: 2.100 - 2.137

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External links
http://jenkins.io/security/advisory/2018-08-15/#SECURITY-637

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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.