CVE-2019-20897 File upload in Jira Server

What is CVE-2019-20897?

CVE-2019-20897 is a medium-severity vulnerability in Atlassian Jira, published on 13 Jul 2020. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

The avatar upload feature in affected versions of Atlassian Jira Server and Data Center allows remote attackers to achieve Denial of Service via a crafted PNG file. The affected versions are before version 8.5.4, from version 8.6.0 before 8.6.2, and from version 8.7.0 before 8.7.1.

Weakness: CWE-434

Which versions are affected by CVE-2019-20897?

It affects 4 products.

Products include Atlassian Jira, Atlassian Jira Data Center, Atlassian Jira Server, Atlassian Jira Software Data Center.

How do I fix CVE-2019-20897?

No fix has been published for CVE-2019-20897 yet. Limit exposure of the affected software until one is available.

Is CVE-2019-20897 being exploited?

There is no known exploitation of CVE-2019-20897 in the wild and no public exploit code.

Other vulnerabilities in Atlassian Jira

• CVE-2020-14172 Deserialization in Jira Server Critical 9.8
• CVE-2019-20409 Code injection in Jira Server Critical 9.8
• CVE-2017-5983 Deserialization in n/a Critical 9.8
• CVE-2010-1165 Code injection in n/a Critical 9.0
• CVE-2016-4319 Cross-site request forgery in Atlassian JIRA Server before 7.1.9 High 8.8

All Atlassian Jira vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-vr57-f797-cqc5.