x/vulndb: potential Go vuln in github.com/envoyproxy/envoy: CVE-2022-21657

[GoVulnBot]

In CVE-2022-21657, the reference URL github.com/envoyproxy/envoy (and possibly others) refers to something in Go.

• PR: http: config options for adding custom request headers envoyproxy/envoy#630

module: github.com/envoyproxy/envoy
package: envoy
description: |
    Envoy is an open source edge and service proxy, designed for cloud-native applications. In affected versions Envoy does not restrict the set of certificates it accepts from the peer, either as a TLS client or a TLS server, to only those certificates that contain the necessary extendedKeyUsage (id-kp-serverAuth and id-kp-clientAuth, respectively). This means that a peer may present an e-mail certificate (e.g. id-kp-emailProtection), either as a leaf certificate or as a CA in the chain, and it will be accepted for TLS. This is particularly bad when combined with the issue described in pull request #630, in that it allows a Web PKI CA that is intended only for use with S/MIME, and thus exempted from audit or supervision, to issue TLS certificates that will be accepted by Envoy. As a result Envoy will trust upstream certificates that should not be trusted. There are no known workarounds to this issue. Users are advised to upgrade.
cves:
  - CVE-2022-21657
links:
    pr: https://github.com/envoyproxy/envoy/pull/630
    context:
      - https://github.com/envoyproxy/envoy/security/advisories/GHSA-837m-wjrv-vm5g

See doc/triage.md for instructions on how to triage this report.

[julieqiu]

Not Go code.