CVE-2024-23323 — Uncontrolled Resource Consumption in Envoy

CWE-400 — Uncontrolled Resource ConsumptionCWE-1176 — Inefficient CPU Computation2 documents2 sources
Severity
5.3MEDIUMNVD
EPSS
0.0%
top 94.40%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
1
Envoyproxy Envoy
Timeline
PublishedFeb 9

Description

Envoy is a high-performance edge/middle/service proxy. The regex expression is compiled for every request and can result in high CPU usage and increased request latency when multiple routes are configured with such matchers. This issue has been addressed in released 1.29.1, 1.28.1, 1.27.3, and 1.26.7. Users are advised to upgrade. There are no known workarounds for this vulnerability.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:LExploitability: 3.9 | Impact: 1.4

Affected Packages2 packages

▶CVEListV5envoyproxy/envoy< 1.26.7+3
▶NVDenvoyproxy/envoy1.26.0 — 1.26.7+3

Patches

Patch: github.com ↗Patch: github.com ↗

📋Vendor Advisories

1
Red Hat
envoy: Excessive CPU usage when URI template matcher is configured using regex↗2024-02-09
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