Incorrect Calculation of Buffer Size Affecting servicemesh-grafana package, versions <0:6.2.2-25.el8


Severity

Recommended
critical

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.36% (72nd percentile)

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  • Snyk IDSNYK-RHEL8-SERVICEMESHGRAFANA-4402177
  • published26 Mar 2023
  • disclosed10 Dec 2019

Introduced: 10 Dec 2019

CVE-2019-18801  (opens in a new tab)
CWE-131  (opens in a new tab)

How to fix?

Upgrade RHEL:8 servicemesh-grafana to version 0:6.2.2-25.el8 or higher.
This issue was patched in RHSA-2019:4222.

NVD Description

Note: Versions mentioned in the description apply only to the upstream servicemesh-grafana package and not the servicemesh-grafana package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

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 Scores

version 3.1