VDB
CVE-2020-27782
CVE-2020-27782
PUBLISHED
CVSS 7.5 HIGH
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.
EPSS 1.37% · 70.5th percentile
Risk Scores
CVSS 3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS Score
1.37%
70.5th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:25.10 | undertow | 0, 2.3.18-1, 2.3.18-2 |
| Ubuntu:24.04:LTS | undertow | 2.3.8-2, 0 |
| Ubuntu:16.04:LTS | undertow | 1.3.16-1, 1.3.7-1, 1.3.5-1 |
| Ubuntu:20.04:LTS | undertow | 2.0.28-1, 2.0.27-1, 2.0.23-1 |
| Ubuntu:22.04:LTS | undertow | 2.2.16-1, 0, 2.2.8-1 |
| Ubuntu:18.04:LTS | undertow | 1.4.21-1, 0, 1.4.20-1 |
Timeline
- Jan 25, 2021 CVE Published
- Apr 14, 2021 EPSS Score
- Jun 23, 2021 EPSS Score
- Aug 25, 2021 EPSS Score
- Dec 29, 2021 EPSS Score
- Jan 6, 2022 EPSS Score
- Feb 4, 2022 EPSS Score
- Mar 1, 2022 EPSS Score
- May 3, 2022 EPSS Score
- Jul 5, 2022 EPSS Score
- Sep 7, 2022 EPSS Score
- Nov 9, 2022 EPSS Score
References
- https://ubuntu.com/security/CVE-2020-27782 third-party-advisory
- https://www.cve.org/CVERecord?id=CVE-2020-27782 third-party-advisory