CVE-2020-27782

Description

A flaw was found in the Undertow AJP connector. Malicious requests and abrupt connection closes could be triggered by an attacker using query strings with non-RFC compliant characters resulting in a denial of service. The highest threat from this vulnerability is to system availability. This affects Undertow 2.1.5.SP1, 2.0.33.SP2, and 2.2.3.SP1.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.31%
Vendor Advisory redhat.com
Affected: n/a Undertow
Published at:
Updated at:

References

Link Tags
https://bugzilla.redhat.com/show_bug.cgi?id=1901304 issue tracking vendor advisory

Frequently Asked Questions

What is the severity of CVE-2020-27782?
CVE-2020-27782 has been scored as a high severity vulnerability.
How to fix CVE-2020-27782?
To fix CVE-2020-27782, 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-2020-27782 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-27782 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2020-27782?
CVE-2020-27782 affects n/a Undertow.
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