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githubGitHub Advisory DatabaseGHSA-XPP6-8R3J-WW43
HistoryJul 08, 2024 - 9:31 p.m.

Undertow Denial of Service vulnerability

2024-07-0821:31:40
CWE-674
GitHub Advisory Database
github.com
16
undertow
denial of service
vulnerability
java 17
tlsv1.3

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

AI Score

6.8

Confidence

High

EPSS

0

Percentile

13.7%

A vulnerability was found in Undertow, where the chunked response hangs after the body was flushed. The response headers and body were sent but the client would continue waiting as Undertow does not send the expected 0\r\n termination of the chunked response. This results in uncontrolled resource consumption, leaving the server side to a denial of service attack. This happens only with Java 17 TLSv1.3 scenarios.

Affected configurations

Vulners
Node
io.undertow\undertowMatchcore
VendorProductVersionCPE
io.undertow\undertowcorecpe:2.3:a:io.undertow\:undertow:core:*:*:*:*:*:*:*:*

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

AI Score

6.8

Confidence

High

EPSS

0

Percentile

13.7%