Some HTTP/2 implementations are vulnerable to a header leak, potentially leading to a denial of service
At a glance
- Source
- NVD
- EPSS
- EPSS 57.46 % · percentile 99 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- certcc
- NVD status
- Modified
Description
Some HTTP/2 implementations are vulnerable to a header leak, potentially leading to a denial of service. The attacker sends a stream of headers with a 0-length header name and 0-length header value, optionally Huffman encoded into 1-byte or greater headers. Some implementations allocate memory for these headers and keep the allocation alive until the session dies. This can consume excess memory.
Weaknesses (CWE)
- CWE-400 — Uncontrolled Resource Consumption
- CWE-770 — Allocation of Resources Without Limits or Throttling
References
- https://kb.cert.org/vuls/id/605641/
- https://github.com/Netflix/security-bulletins/blob/master/advisories/third-party/2019-002.md
- https://seclists.org/bugtraq/2019/Aug/24
- https://usn.ubuntu.com/4099-1/
- http://seclists.org/fulldisclosure/2019/Aug/16
- https://www.synology.com/security/advisory/Synology_SA_19_33
- https://support.f5.com/csp/article/K02591030
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TAZZEVTCN2B4WT6AIBJ7XGYJMBTORJU5/
- https://seclists.org/bugtraq/2019/Aug/40
- https://www.debian.org/security/2019/dsa-4505
- https://security.netapp.com/advisory/ntap-20190823-0002/
- https://security.netapp.com/advisory/ntap-20190823-0005/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CMNFX5MNYRWWIMO4BTKYQCGUDMHO3AXP/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4ZQGHE3WTYLYAYJEIDJVF2FIGQTAYPMC/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BP556LEG3WENHZI5TAQ6ZEBFTJB4E2IS/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XHTKU7YQ5EEP2XNSAV4M4VJ7QCBOJMOD/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/POPAEC4FWL4UU4LDEGPY5NPALU24FFQD/
- http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00035.html
- http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00032.html
- http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00031.html
- https://kc.mcafee.com/corporate/index?page=content&id=SB10296
- https://access.redhat.com/errata/RHSA-2019:2745
- https://access.redhat.com/errata/RHSA-2019:2746
- https://access.redhat.com/errata/RHSA-2019:2775
- https://access.redhat.com/errata/RHSA-2019:2799
- https://access.redhat.com/errata/RHSA-2019:2925
- https://access.redhat.com/errata/RHSA-2019:2939
- https://access.redhat.com/errata/RHSA-2019:2946
- https://access.redhat.com/errata/RHSA-2019:2950
- https://access.redhat.com/errata/RHSA-2019:2955
- https://access.redhat.com/errata/RHSA-2019:2966
- http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00014.html
- https://support.f5.com/csp/article/K02591030?utm_source=f5support&%3Butm_medium=RSS
- https://access.redhat.com/errata/RHSA-2019:3933
- https://access.redhat.com/errata/RHSA-2019:3935
- https://access.redhat.com/errata/RHSA-2019:3932
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/H472D5HPXN6RRXCNFML3BK5OYC52CXF2/
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.0 | HIGH 7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | certcc |
| CVSS 3.1 | MEDIUM 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H | NVD · nvd@nist.gov (Primary) |
| CVSS 3.0 | HIGH 7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | NVD · cret@cert.org (Secondary) |
| CVSS 2.0 | MEDIUM 6.8 | AV:N/AC:L/Au:S/C:N/I:N/A:C | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2019-18888
- GCVE · GCVE-0-2019-9516
CERT-FR advisories
- CERTFR-2019-AVI-389 — Multiples vulnérabilités dans Nginx · cert.ssi.gouv.fr
- CERTFR-2019-AVI-388 — Multiples vulnérabilités dans Apple SwiftNIO · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:a:apple:swiftnio:*:*:*:*:*:*:*:*≥ 1.0.0 ≤ 1.4.0cpe:2.3:a:apache:traffic_server:*:*:*:*:*:*:*:*≥ 6.0.0 ≤ 6.2.3cpe:2.3:a:apache:traffic_server:*:*:*:*:*:*:*:*≥ 7.0.0 ≤ 7.1.6cpe:2.3:a:apache:traffic_server:*:*:*:*:*:*:*:*≥ 8.0.0 ≤ 8.0.3cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:*cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*cpe:2.3:a:synology:skynas:-:*:*:*:*:*:*:*cpe:2.3:o:synology:diskstation_manager:6.2:*:*:*:*:*:*:*cpe:2.3:o:synology:vs960hd_firmware:-:*:*:*:*:*:*:*cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:*cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*cpe:2.3:o:opensuse:leap:15.0:*:*:*:*:*:*:*cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*cpe:2.3:a:redhat:jboss_core_services:1.0:*:*:*:*:*:*:*cpe:2.3:a:redhat:jboss_enterprise_application_platform:7.2.0:*:*:*:*:*:*:*cpe:2.3:a:redhat:jboss_enterprise_application_platform:7.3.0:*:*:*:*:*:*:*cpe:2.3:a:redhat:openshift_service_mesh:1.0:*:*:*:*:*:*:*cpe:2.3:a:redhat:quay:3.0.0:*:*:*:*:*:*:*cpe:2.3:a:redhat:software_collections:1.0:*:*:*:*:*:*:*cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*cpe:2.3:a:oracle:graalvm:19.2.0:*:*:*:enterprise:*:*:*cpe:2.3:a:mcafee:web_gateway:*:*:*:*:*:*:*:*≥ 7.7.2.0 < 7.7.2.24cpe:2.3:a:mcafee:web_gateway:*:*:*:*:*:*:*:*≥ 7.8.2.0 < 7.8.2.13cpe:2.3:a:mcafee:web_gateway:*:*:*:*:*:*:*:*≥ 8.1.0 < 8.2.0cpe:2.3:a:f5:nginx:*:*:*:*:*:*:*:*≥ 1.9.5 < 1.16.1cpe:2.3:a:f5:nginx:*:*:*:*:*:*:*:*≥ 1.17.0 ≤ 1.17.2cpe:2.3:a:nodejs:node.js:*:*:*:*:lts:*:*:*≥ 8.0.0 < 8.16.1cpe:2.3:a:nodejs:node.js:*:*:*:*:lts:*:*:*≥ 10.0.0 < 10.16.3cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:*≥ 12.0.0 < 12.8.1
Affected products
| Product | Versions |
|---|---|
| affected n/a |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |