Vulnerability Database

289,598

Total vulnerabilities in the database

CVE-2020-27782

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 v3:

  • Severity: High
  • Score: 7.5
  • AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v2:

  • Severity: High
  • Score: 7.8
  • AV:N/AC:L/Au:N/C:N/I:N/A:C

CWEs:

Software From Fixed in
redhat / jboss_fuse 6.0.0 6.0.0.x
redhat / jboss_fuse 7.0.0 7.0.0.x
redhat / undertow 2.0.33-sp2 2.0.33-sp2.x
redhat / undertow 2.2.3-sp1 2.2.3-sp1.x
redhat / undertow 2.1.5-sp1 2.1.5-sp1.x
io.undertow / undertow-core 2.1.0 2.1.5
io.undertow / undertow-core - 2.0.33