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CVE-2024-23323

MEDIUMCVSS 5.3/10EPSS 0.50%

Last modified

CVE-2024-23323 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. 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. EPSS estimates a 0.50% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1
5.3/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

EPSS Probability
0.50%

39.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
EnvoyproxyEnvoy>= 1.26.0, < 1.26.7
EnvoyproxyEnvoy>= 1.27.0, < 1.27.3
EnvoyproxyEnvoy>= 1.28.0, < 1.28.1
EnvoyproxyEnvoy>= 1.29.0, < 1.29.1

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2024-23323?
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.
How severe is CVE-2024-23323?
CVE-2024-23323 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 0.50% probability of exploitation in the next 30 days.
How do I fix CVE-2024-23323?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2024-23323?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST