CVE-2021-3859
HIGH severity · CVSS 7.5 · CWE-214
7.5CVSS HIGH
Summary
A flaw was found in Undertow that tripped the client-side invocation timeout with certain calls made over HTTP2. This flaw allows an attacker to carry out denial of service attacks.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
Confidentiality impactNone
Integrity impactNone
Availability impactHigh
Exploit probability (EPSS)1%
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Official patch: https://github.com/undertow-io/undertow/commit/e43f0ada3f4da6e8579e0020cec3cb1a81e487c2 ↗
Additional information
- NVD record
- https://github.com/undertow-io/undertow/commit/e43f0ada3f4da6e8579e0020cec3cb1a81e487c2Patch
- https://issues.redhat.com/browse/UNDERTOW-1979Patch
- https://access.redhat.com/security/cve/CVE-2021-3859Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2010378Advisory
- https://github.com/undertow-io/undertow/pull/1296Advisory
- https://security.netapp.com/advisory/ntap-20221201-0004/Advisory