CVE-2019-18801

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.

CVSS v3 9.8 CRITICAL
CVSS v2.0 7.5 HIGH

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://access.redhat.com/errata/RHSA-2019:4222	Third Party Advisory
https://blog.envoyproxy.io	Product
https://github.com/envoyproxy/envoy/commits/master	Patch
https://github.com/envoyproxy/envoy/security/advisories/GHSA-gxvv-x4p2-rppp	Exploit Third Party Advisory
https://groups.google.com/forum/#%21forum/envoy-users

Configurations

Configuration 1 (hide)

cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*

History

07 Nov 2023, 03:07

Type	Values Removed	Values Added
References	~~{'url': 'https://groups.google.com/forum/#!forum/envoy-users', 'name': 'https://groups.google.com/forum/#!forum/envoy-users', 'tags': ['Third Party Advisory'], 'refsource': 'MISC'}~~	() https://groups.google.com/forum/#%21forum/envoy-users -

Information

Published : 2019-12-13 13:15

Updated : 2023-12-10 13:13

NVD link : CVE-2019-18801

Mitre link : CVE-2019-18801

CVE.ORG link : CVE-2019-18801

JSON object : View

Products Affected

envoyproxy

envoy

CWE

CWE-787

Out-of-bounds Write

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