CVE-2021-32623
High
Description
Opencast is a free and open source solution for automated video capture and distribution. Versions of Opencast prior to 9.6 are vulnerable to the billion laughs attack, which allows an attacker to easily execute a (seemingly permanent) denial of service attack, essentially taking down Opencast using a single HTTP request. To exploit this, users need to have ingest privileges, limiting the group of potential attackers The problem has been fixed in Opencast 9.6. There is no known workaround for this issue.
SeverityHigh
CVSS8.1
Exploit probability—
ProductApereo Opencast
PublishedJun 16, 2021
First seenJun 16, 2021
Weakness typeCWE-776CWE-776
How to fix
Update
- apereo opencast9.6 or later
- org.opencastproject:opencast-kernel9.6 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| apereo opencast | v < 9.6 | 9.6 |
| org.opencastproject:opencast-kernelMaven | v < 9.6 | 9.6 |
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