CVE-2021-39123 Denial of service in Jira Data Center
Unauthenticated attackers can cause a Denial of Service in Atlassian Jira Server and Data Center via the gadget generation endpoint.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-39123?
CVE-2021-39123 is a high-severity denial of service vulnerability in Atlassian Jira, published on 14 Sep 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Affected versions of Atlassian Jira Server and Data Center allow unauthenticated remote attackers to impact the application's availability via a Denial of Service (DoS) vulnerability in the /rest/gadget/1.0/createdVsResolved/generate endpoint. The affected versions are before version 8.16.0.
Which versions are affected by CVE-2021-39123?
It affects 2 products.
Products include Atlassian Data Center, Atlassian Jira.
How do I fix CVE-2021-39123?
No fix has been published for CVE-2021-39123 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2021-39123 being exploited?
There is no known exploitation of CVE-2021-39123 in the wild and no public exploit code.
Other vulnerabilities in Atlassian Jira
Sources
Also known as GHSA-5v59-rqmv-2rcp.