CVE-2021-43824
Discription

Envoy is an open source edge and service proxy, designed for cloud-native applications. In affected versions a crafted request crashes Envoy when a CONNECT request is sent to JWT filter configured with regex match. This provides a denial of service attack vector. The only workaround is to not use regex in the JWT filter. Users are advised to upgrade.Read More

References

https://github.com/envoyproxy/envoy/security/advisories/GHSA-vj5m-rch8-5r2phttps://github.com/envoyproxy/envoy/commit/9371333230b1a6e1be2eccf4868771e11af6253a

4.3 Medium

CVSS2

  • Access Vector
  • Access Complexity
  • Authentication
  • Confidentiality Impact
  • Integrity Impact
  • Availability Impact
  • Network
  • Medium
  • None
  • None
  • None
  • Partial

AV:N/AC:M/Au:N/C:N/I:N/A:P

7.5 High

CVSS3

  • Attack Vector
  • Attack Complexity
  • Privileges Required
  • User Interaction
  • Scope
  • Confidentiality Impact
  • Integrity Impact
  • Availability Impact
  • Network
  • Low
  • None
  • None
  • Unchanged
  • None
  • None
  • High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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