BIT-envoy-2022-29227

    Dashboard / Vulnerabilities / BIT-envoy-2022-29227

    BIT-envoy-2022-29227

    Published: 6 Mar 2024Last Modified: 8 Sept 2026

    Summary: Use after free in Envoy

    Details: Envoy is a cloud-native high-performance edge/middle/service proxy. In versions prior to 1.22.1 if Envoy attempts to send an internal redirect of an HTTP request consisting of more than HTTP headers, there’s a lifetime bug which can be triggered. If while replaying the request Envoy sends a local reply when the redirect headers are processed, the downstream state indicates that the downstream stream is not complete. On sending the local reply, Envoy will attempt to reset the upstream stream, but as it is actually complete, and deleted, this result in a use-after-free. Users are advised to upgrade. Users unable to upgrade are advised to disable internal redirects if crashes are observed.

    References: https://github.com/envoyproxy/envoy/commit/fe7c69c248f4fe5a9080c7ccb35275b5218bb5ab, https://github.com/envoyproxy/envoy/security/advisories/GHSA-rm2p-qvf6-pvr6, https://nvd.nist.gov/vuln/detail/CVE-2022-29227

    Affected packages

    Package

    Name: envoy

    Purl: pkg:bitnami/envoy

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 0
    Fixed -1.22.1

    Affected versions

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    BIT-envoy-2022-29227 | CVE-DB