VulnerabilityModified
CVE-2021-3859
This flaw allows an attacker to carry out denial of service attacks.
HIGH 7.5EPSS 1.64%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.64%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 1.64% probability · 75th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-214, CWE-668
- Affected
- redhat/jboss enterprise application platform · redhat/single sign-on · redhat/undertow · netapp/cloud secure agent · netapp/oncommand insight · netapp/oncommand workflow automation
- Source
- secalert@redhat.com
References
- https://access.redhat.com/security/cve/CVE-2021-3859Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2010378Issue Tracking, Vendor Advisory
- https://github.com/undertow-io/undertow/commit/e43f0ada3f4da6e8579e0020cec3cb1a81e487c2Patch, Third Party Advisory
- https://github.com/undertow-io/undertow/pull/1296Third Party Advisory
- https://issues.redhat.com/browse/UNDERTOW-1979Issue Tracking, Patch, Vendor Advisory
- https://security.netapp.com/advisory/ntap-20221201-0004/Third Party Advisory
- https://access.redhat.com/security/cve/CVE-2021-3859Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2010378Issue Tracking, Vendor Advisory
- https://github.com/undertow-io/undertow/commit/e43f0ada3f4da6e8579e0020cec3cb1a81e487c2Patch, Third Party Advisory
- https://github.com/undertow-io/undertow/pull/1296Third Party Advisory
- https://issues.redhat.com/browse/UNDERTOW-1979Issue Tracking, Patch, Vendor Advisory
- https://security.netapp.com/advisory/ntap-20221201-0004/Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.