Vulnerabilities > CVE-2021-3690 - Memory Leak vulnerability in Redhat products
Attack vector
NETWORK Attack complexity
LOW Privileges required
NONE Confidentiality impact
NONE Integrity impact
NONE Availability impact
HIGH Summary
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.
Vulnerable Configurations
Common Weakness Enumeration (CWE)
References
- https://access.redhat.com/security/cve/CVE-2021-3690
- https://access.redhat.com/security/cve/CVE-2021-3690
- https://bugzilla.redhat.com/show_bug.cgi?id=1991299
- https://bugzilla.redhat.com/show_bug.cgi?id=1991299
- https://github.com/undertow-io/undertow/commit/c7e84a0b7efced38506d7d1dfea5902366973877
- https://github.com/undertow-io/undertow/commit/c7e84a0b7efced38506d7d1dfea5902366973877
- https://issues.redhat.com/browse/UNDERTOW-1935
- https://issues.redhat.com/browse/UNDERTOW-1935