High CPU Usage in Eclipse Jetty due to Malformed TLS Frame
CVE-2021-28165

7.5HIGH

Key Information:

Vendor

The Eclipse Foundation

Status
Eclipse Jetty
Vendor
CVE Published:
1 April 2021

Badges

👾 Exploit Exists🟣 EPSS 10%

What is CVE-2021-28165?

In Eclipse Jetty versions 7.2.2 through 9.4.38, as well as Jetty versions 10.0.0.alpha0 up to 10.0.1, and 11.0.0.alpha0 to 11.0.1, a vulnerability exists that can result in a denial of service. Specifically, upon receiving a large invalid TLS frame, the CPU usage can spike to 100%, leading to potential system unavailability. This flaw poses significant risks to services leveraging these versions, making it essential for affected users to update their Jetty installations.

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Affected Version(s)

Eclipse Jetty 7.2.2

Eclipse Jetty <= 9.4.38

Eclipse Jetty 10.0.0.alpha0

References

https://github.com/eclipse/jetty.project/security/advisor...
x_refsource_CONFIRM
https://lists.apache.org/thread.html/r17e26cf9a1e3cbc0952...
mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/r5f172f2dd8fb02f032e...
mailing-listx_refsource_MLIST

EPSS Score

10% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

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