CVE-2021-3690

high

Description

A flaw was found in Undertow. A buffer leak on the incoming WebSocket PONG message may lead to memory exhaustion. This flaw allows an attacker to cause a denial of service. The highest threat from this vulnerability is availability.

References

https://issues.redhat.com/browse/UNDERTOW-1935

https://github.com/undertow-io/undertow/commit/c7e84a0b7efced38506d7d1dfea5902366973877

https://bugzilla.redhat.com/show_bug.cgi?id=1991299

https://access.redhat.com/security/cve/CVE-2021-3690

Details

Source: Mitre, NVD

Published: 2022-08-23

Updated: 2023-07-07

Risk Information

CVSS v2

Base Score: 7.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

Severity: High

CVSS v3

Base Score: 7.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H