BIT-envoy-2021-39162

    Dashboard / Vulnerabilities / BIT-envoy-2021-39162

    BIT-envoy-2021-39162

    Published: 6 Mar 2024Last Modified: 8 Sept 2026

    Summary: Incorrect handling of H2 GOAWAY + SETTINGS frames

    Details: Pomerium is an open source identity-aware access proxy. Envoy, which Pomerium is based on, can abnormally terminate if an H/2 GOAWAY and SETTINGS frame are received in the same IO event. This can lead to a DoS in the presence of untrusted *upstream* servers. 0.15.1 contains an upgraded envoy binary with this vulnerability patched. If only trusted upstreams are configured, there is not substantial risk of this condition being triggered.

    References: https://github.com/envoyproxy/envoy/security/advisories/GHSA-j374-mjrw-vvp8, https://github.com/pomerium/pomerium/security/advisories/GHSA-gjcg-vrxg-xmgv, https://groups.google.com/g/envoy-announce/c/5xBpsEZZDfE/m/wD05NZBbAgAJ, https://nvd.nist.gov/vuln/detail/CVE-2021-39162

    Affected packages

    Package

    Name: envoy

    Purl: pkg:bitnami/envoy

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 0
    Fixed -1.18.4

    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-2021-39162 | CVE-DB