[io.undertow:undertow-core] Undertow vulnerable to memory exhaustion due to buffer leak

Buffer leak on incoming WebSocket PONG message(s) in Undertow before 2.0.40 and 2.2.10 can lead to memory exhaustion and allow a denial of service.

References

• https://nvd.nist.gov/vuln/detail/CVE-2021-3690
• https://github.com/undertow-io/undertow/commit/c7e84a0b7efced38506d7d1dfea5902366973877
• https://access.redhat.com/security/cve/cve-2021-3690#cve-cvss-v3
• https://issues.redhat.com/browse/UNDERTOW-1935
• https://www.mend.io/vulnerability-database/CVE-2021-3690
• https://github.com/advisories/GHSA-fj7c-vg2v-ccrm