BIT-envoy-2021-43824

vendorUSosv

Null pointer dereference in envoy

view advisory published 2024-03-06Licence: per source

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.

describes (1)

Related CVEs.

ID	severity	EPSS	exploitable	published
CVE-2021-43824US	high7.5	1.06% (64th)	—	2022-02-22
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 f…

references

External citations — patches, advisories, analysis.

https://github.com/envoyproxy/envoy/commit/9371333230b1a6e1be2eccf4868771e11af6253aADVISORY
https://github.com/envoyproxy/envoy/security/advisories/GHSA-vj5m-rch8-5r2pADVISORY
https://nvd.nist.gov/vuln/detail/CVE-2021-43824WEB

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