VDB
RHSA-2021%3A3216
RHSA-2021%3A3216
PUBLISHED
CVSS 7.5 HIGH
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.
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
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Red Hat | EAP 7.3 async |
Timeline
- Aug 18, 2021 CVE Published
- Apr 1, 2026 CVE Updated
- May 1, 2026 Distribution Patch
- May 1, 2026 Distribution Patch
- May 1, 2026 Security Advisory
- May 1, 2026 Security Advisory
References
- https://access.redhat.com/errata/RHSA-2021:3216 advisory
- https://access.redhat.com/security/updates/classification/#important advisory
- https://access.redhat.com/jbossnetwork/restricted/listSoftware.html?downloadType=securityPatches&product=appplatform&version=7.3 advisory
- https://access.redhat.com/documentation/en-us/red_hat_jboss_enterprise_application_platform/7.3/ advisory
- https://access.redhat.com/documentation/en-us/red_hat_jboss_enterprise_application_platform/7.3/html-single/installation_guide/ advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1991299 issue
- https://security.access.redhat.com/data/csaf/v2/advisories/2021/rhsa-2021_3216.json advisory
- https://access.redhat.com/security/cve/CVE-2021-3690 advisory
- https://www.cve.org/CVERecord?id=CVE-2021-3690 advisory
- https://nvd.nist.gov/vuln/detail/CVE-2021-3690 advisory