Ecosyste.ms: Advisories

Security Advisories: MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLXJoY3ctd2pjbS05aDZn

Denial of service in Undertow

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.

Permalink: https://github.com/advisories/GHSA-rhcw-wjcm-9h6g
JSON: https://advisories.ecosyste.ms/api/v1/advisories/MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLXJoY3ctd2pjbS05aDZn
Source: GitHub Advisory Database
Origin: Unspecified
Severity: High
Classification: General
Published: almost 3 years ago
Updated: almost 2 years ago

CVSS Score: 7.5
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Identifiers: GHSA-rhcw-wjcm-9h6g, CVE-2020-27782
References:

• https://nvd.nist.gov/vuln/detail/CVE-2020-27782
• https://github.com/undertow-io/undertow/pull/997/commits/98a9ab7f2d7fe7a7254eaf17d47816c452169c90
• https://bugzilla.redhat.com/show_bug.cgi?id=1901304
• https://issues.redhat.com/browse/UNDERTOW-1813
• https://github.com/advisories/GHSA-rhcw-wjcm-9h6g

Repository: https://github.com/undertow-io/undertow
Blast Radius: 27.9

Affected Packages