UBUNTU-CVE-2020-27782

Advisory lineage Upstream: 1 Downstream: 0
Upstream
CVE-2020-27782
Published: 23 Feb 2021, 19:15
Last modified:20 May 2026, 16:04

Vulnerability Summary

Overall Risk (default)
medium
30/100
CVSS Score
7.5 HIGH
3.1 (osv_ubuntu)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

23 Feb 2021, 19:15
Published
Vulnerability first disclosed
20 May 2026, 16:04
Last Modified
Vulnerability information updated

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.

CVSS Metrics

  • v3.1•HIGH•Score: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Systems

  • ubuntu•undertow

    all | all | all | all | all | all | all | all

References (2)