CVE-2016-4970
handler/ssl/OpenSslEngine.java in Netty 4.0.x before 4.0.37.Final and 4.1.x before 4.1.1.Final allows remote attackers to cause a denial of service (infinite loop).
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 11.3%, higher than 96% of all known CVEs. Patch or mitigate before the next change window.
Description
handler/ssl/OpenSslEngine.java in Netty 4.0.x before 4.0.37.Final and 4.1.x before 4.1.1.Final allows remote attackers to cause a denial of service (infinite loop).
- 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
- 11.26% probability · 96th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-835
- Affected
- netty/netty · redhat/jboss data grid · redhat/jboss middleware text-only advisories · apache/cassandra
- Source
- secalert@redhat.com
EPSS 11.3% since 4 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://netty.io/news/2016/06/07/4-0-37-Final.htmlRelease Notes, Vendor Advisory
- http://netty.io/news/2016/06/07/4-1-1-Final.htmlRelease Notes, Vendor Advisory
- http://rhn.redhat.com/errata/RHSA-2017-0179.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2017-1097.htmlThird Party Advisory
- http://www.securityfocus.com/bid/96540Third Party Advisory, VDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=1343616Issue Tracking, Third Party Advisory, VDB Entry
- https://github.com/netty/netty/pull/5364Patch, Third Party Advisory
- https://lists.apache.org/thread.html/afaa5860e3a6d327eb96c3d82cbd2f5996de815a16854ed1ad310144%40%3Ccommits.cassandra.apache.org%3E
- https://wiki.opendaylight.org/view/Security_AdvisoriesThird Party Advisory
- http://netty.io/news/2016/06/07/4-0-37-Final.htmlRelease Notes, Vendor Advisory
- http://netty.io/news/2016/06/07/4-1-1-Final.htmlRelease Notes, Vendor Advisory
- http://rhn.redhat.com/errata/RHSA-2017-0179.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2017-1097.htmlThird Party Advisory
- http://www.securityfocus.com/bid/96540Third Party Advisory, VDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=1343616Issue Tracking, Third Party Advisory, VDB Entry
- https://github.com/netty/netty/pull/5364Patch, Third Party Advisory
- https://lists.apache.org/thread.html/afaa5860e3a6d327eb96c3d82cbd2f5996de815a16854ed1ad310144%40%3Ccommits.cassandra.apache.org%3E
- https://wiki.opendaylight.org/view/Security_AdvisoriesThird Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.