PT-2021-17902 · Envoy · Envoy

Asraa + 1 · Published 2021-05-20 · Updated 2024-03-06 · CVE-2021-28682

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions: Envoy versions prior to 1.71.1

Description: A remotely exploitable integer overflow issue exists due to a very large grpc-timeout value, leading to unexpected timeout calculations.

Recommendations: For versions prior to 1.71.1, update to a version that contains a fix for this issue.

Exploit

Fix

Integer Overflow

Weakness Enumeration

CWE-190

Related Identifiers

BIT-ENVOY-2021-28682

CVE-2021-28682

GHSA-R22G-5F3X-XJGG

RHSA-2021:1322

RHSA-2021:1324

Affected Products

Envoy

References · 11

• 🔥 https://github.com/envoyproxy/envoy/blob/15e3b9dbcc9aaa9d391fa8033904aad1ea1ae70d/api/envoy/api/v2/cluster.proto#L36 · Exploit
• https://linux.oracle.com/errata/ELSA-2021-9397.html · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-28682 · Security Note
• https://blog.envoyproxy.io · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2021-9399.html · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2021-9398.html · Vendor Advisory
• https://osv.dev/vulnerability/BIT-envoy-2021-28682 · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2021-9396.html · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-28682 · Vendor Advisory
• https://github.com/envoyproxy/envoy/security/advisories/GHSA-r22g-5f3x-xjgg · Note
• https://github.com/envoyproxy/envoy/releases · Note