CVE-2019-18801
Apache Envoy HTTP/2 Heap Corruption Remote Code Execution Vulnerability
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.
INFO
Published Date :
Dec. 13, 2019, 1:15 p.m.
Last Modified :
Nov. 21, 2024, 4:33 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 2.0 | HIGH | [email protected] | ||||
| CVSS 3.1 | CRITICAL | [email protected] |
Solution
- Update the affected packages.
- If using Red Hat OpenShift Service Mesh, update the RPMs package according to RHSA-2019:4222.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2019-18801.
| URL | 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 | |
| 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 |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2019-18801 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2019-18801
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2019-18801 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2019-18801 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://access.redhat.com/errata/RHSA-2019:4222 Added Reference https://blog.envoyproxy.io Added Reference https://github.com/envoyproxy/envoy/commits/master Added Reference https://github.com/envoyproxy/envoy/security/advisories/GHSA-gxvv-x4p2-rppp Added Reference https://groups.google.com/forum/#%21forum/envoy-users -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Nov. 07, 2023
Action Type Old Value New Value Added Reference MITRE https://groups.google.com/forum/#%21forum/envoy-users [No types assigned] Removed Reference MITRE https://groups.google.com/forum/#!forum/envoy-users -
CWE Remap by [email protected]
Aug. 24, 2020
Action Type Old Value New Value Changed CWE CWE-119 CWE-787 -
Initial Analysis by [email protected]
Dec. 18, 2019
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:P/I:P/A:P) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://access.redhat.com/errata/RHSA-2019:4222 No Types Assigned https://access.redhat.com/errata/RHSA-2019:4222 Third Party Advisory Changed Reference Type https://blog.envoyproxy.io No Types Assigned https://blog.envoyproxy.io Product Changed Reference Type https://github.com/envoyproxy/envoy/commits/master No Types Assigned https://github.com/envoyproxy/envoy/commits/master Patch Changed Reference Type https://github.com/envoyproxy/envoy/security/advisories/GHSA-gxvv-x4p2-rppp No Types Assigned https://github.com/envoyproxy/envoy/security/advisories/GHSA-gxvv-x4p2-rppp Exploit, Third Party Advisory Changed Reference Type https://groups.google.com/forum/#!forum/envoy-users No Types Assigned https://groups.google.com/forum/#!forum/envoy-users Third Party Advisory Added CWE NIST CWE-119 Added CPE Configuration OR *cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:* versions up to (including) 1.12.1
Vulnerability Scoring Details
Base CVSS Score: 9.8
Base CVSS Score: 7.5
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.04 }} -0.08%
score
0.10395
percentile