CVE-2020-2101

Description

Jenkins 2.218 and earlier, LTS 2.204.1 and earlier did not use a constant-time comparison function for validating connection secrets, which could potentially allow an attacker to use a timing attack to obtain this secret.

Category

5.3
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 1.65% Top 20%
Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory jenkins.io
Affected: Jenkins project Jenkins
Published at:
Updated at:

References

Link Tags
https://jenkins.io/security/advisory/2020-01-29/#SECURITY-1659 vendor advisory
http://www.openwall.com/lists/oss-security/2020/01/29/1 third party advisory mailing list
https://access.redhat.com/errata/RHSA-2020:0681 vendor advisory
https://access.redhat.com/errata/RHSA-2020:0683 vendor advisory
https://access.redhat.com/errata/RHBA-2020:0402 vendor advisory
https://access.redhat.com/errata/RHBA-2020:0675 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2020-2101?
CVE-2020-2101 has been scored as a medium severity vulnerability.
How to fix CVE-2020-2101?
To fix CVE-2020-2101, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-2101 being actively exploited in the wild?
It is possible that CVE-2020-2101 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~2% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2020-2101?
CVE-2020-2101 affects Jenkins project Jenkins.
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