CVE-2019-5419
There is a possible denial of service vulnerability in Action View (Rails) <5.2.2.1, <5.1.6.2, <5.0.7.2, <4.2.11.1 where specially crafted accept headers can cause action view to consume 100% cpu and make the server unresponsive.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (8.78%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
There is a possible denial of service vulnerability in Action View (Rails) <5.2.2.1, <5.1.6.2, <5.0.7.2, <4.2.11.1 where specially crafted accept headers can cause action view to consume 100% cpu and make the server unresponsive.
- 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
- 8.78% probability · 95th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-400, CWE-770
- Affected
- rubyonrails/rails · debian/debian linux · redhat/cloudforms · redhat/software collections · opensuse/leap · fedoraproject/fedora
- Source
- support@hackerone.com
EPSS 8.8% since 26 October 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://lists.opensuse.org/opensuse-security-announce/2019-05/msg00011.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00025.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00001.htmlMailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2019/03/22/1Exploit, Mailing List, Mitigation, Patch, Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:0796Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:1147Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:1149Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:1289Third Party Advisory
- https://groups.google.com/forum/#%21topic/rubyonrails-security/GN7w9fFAQeI
- https://lists.debian.org/debian-lts-announce/2019/03/msg00042.htmlMailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Y43636TH4D6T46IC6N2RQVJTRFJAAYGA/
- https://weblog.rubyonrails.org/2019/3/13/Rails-4-2-5-1-5-1-6-2-have-been-released/Patch, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00011.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00025.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00001.htmlMailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2019/03/22/1Exploit, Mailing List, Mitigation, Patch, Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:0796Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:1147Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:1149Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:1289Third Party Advisory
- https://groups.google.com/forum/#%21topic/rubyonrails-security/GN7w9fFAQeI
- https://lists.debian.org/debian-lts-announce/2019/03/msg00042.htmlMailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Y43636TH4D6T46IC6N2RQVJTRFJAAYGA/
- https://weblog.rubyonrails.org/2019/3/13/Rails-4-2-5-1-5-1-6-2-have-been-released/Patch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.