PT-2022-16121 · Envoy · Envoy

Mattklein123 · Published 2022-02-22 · Updated 2024-03-06 · CVE-2022-23606

Positive Technologies (AI Summary)

CVSS v3.1

4.4

Medium

Base vector

AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Envoy (affected versions not specified)

Description Envoy is an open source edge and service proxy, designed for cloud-native applications. When a cluster is deleted via Cluster Discovery Service (CDS), all idle connections established to endpoints in that cluster are disconnected. A recursion was introduced in the procedure of disconnecting idle connections that can lead to stack exhaustion and abnormal process termination when a cluster has a large number of idle connections. This infinite recursion causes Envoy to crash.

Recommendations Users are advised to upgrade. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Uncontrolled Recursion

Weakness Enumeration

CWE-674

Related Identifiers

BIT-ENVOY-2022-23606

CVE-2022-23606

GHSA-9VP2-4CP7-VVXF

RHSA-2022:1275

RHSA-2022:1276

Affected Products

Envoy

References · 9

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/23xxx/CVE-2022-23606.json · Exploit
• https://github.com/envoyproxy/envoy/commit/4b6dd3b53cd5c6d4d4df378a2fc62c1707522b31 · Patch
• https://osv.dev/vulnerability/BIT-envoy-2022-23606 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-23606 · Security Note
• https://osv.dev/vulnerability/CVE-2022-23606 · Vendor Advisory
• https://github.com/envoyproxy/envoy/security/advisories/GHSA-9vp2-4cp7-vvxf · Note
• https://t.me/cibsecurity/37912 · Telegram Post
• https://t.me/cvenotify/27608 · Telegram Post
• https://t.me/cvenotify/27188 · Telegram Post