CVE-2019-18801

Current Description

An issue was discovered in Envoy 1.12.0. An untrusted remote client may send HTTP/2 requests that write to the heap outside of the request buffers when the upstream is HTTP/1. This may be used to corrupt nearby heap contents (leading to a query-of-death scenario) or may be used to bypass Envoy's access control mechanisms such as path based routing. An attacker can also modify requests from other users that happen to be proximal temporally and spatially.

Basic Data

PublishedDecember 13, 2019
Last ModifiedDecember 18, 2019
Assignercve@mitre.org
Data TypeCVE
Data FormatMITRE
Data Version4.0
Problem TypeCWE-119
CVE Data Version4.0

Base Metric V2

CVSS 2 - Version2.0
CVSS 2 - Vector StringAV:N/AC:L/Au:N/C:P/I:P/A:P
CVSS 2 - Access VectorNETWORK
CVSS 2 - Access ComplexityLOW
CVSS 2 - AuthenticationNONE
CVSS 2 - Confidentiality ImpactPARTIAL
CVSS 2 - Availability ImpactPARTIAL
CVSS 2 - Base Score7.5
SeverityHIGH
Exploitability Score10.0
Impact Score6.4
Obtain All Privilegefalse
Obtain User Privilegefalse
Obtain Other Privilegefalse

Base Metric V3

No data provided.

Configurations

  • OR - Configuration 1
    Cpe VersionPartVendorProductVersionUpdateEditionLanguageSW EditionTarget SWTarget HWOtherVersion Start IncludingVersion End IncludingVersion Start ExcludingVersion End Excluding
    2.3ApplicationEnvoyproxyEnvoy********1.12.1

Vulnerable Software List

VendorProductVersions
Envoyproxy Envoy *

References

NameSourceURLTags
https://access.redhat.com/errata/RHSA-2019:4222https://access.redhat.com/errata/RHSA-2019:4222MISCThird Party Advisory
https://blog.envoyproxy.iohttps://blog.envoyproxy.ioMISCProduct
https://github.com/envoyproxy/envoy/commits/masterhttps://github.com/envoyproxy/envoy/commits/masterMISCPatch
https://github.com/envoyproxy/envoy/security/advisories/GHSA-gxvv-x4p2-rppphttps://github.com/envoyproxy/envoy/security/advisories/GHSA-gxvv-x4p2-rpppCONFIRMExploit Third Party Advisory
https://groups.google.com/forum/#!forum/envoy-usershttps://groups.google.com/forum/#!forum/envoy-usersMISCThird Party Advisory