CVE-2023-35943

Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to versions 1.27.0, 1.26.4, 1.25.9, 1.24.10, and 1.23.12, the CORS filter will segfault and crash Envoy when the `origin` header is removed and deleted between `decodeHeaders`and `encodeHeaders`. Versions 1.27.0, 1.26.4, 1.25.9, 1.24.10, and 1.23.12 have a fix for this issue. As a workaround, do not remove the `origin` header in the Envoy configuration.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
6.3 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:H
GitHub_MCNA
6.3 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:H
CVEADP
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CISA-ADPADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
VendorProductVersion
envoyproxyenvoy
1.23.0 ≤
𝑥
< 1.23.12
envoyproxyenvoy
1.24.0 ≤
𝑥
< 1.24.10
envoyproxyenvoy
1.25.0 ≤
𝑥
< 1.25.9
envoyproxyenvoy
1.26.0 ≤
𝑥
< 1.26.4
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://github.com/envoyproxy/envoy/security/advisories/GHSA-mc6h-6j9x-v3gq
https://github.com/envoyproxy/envoy/security/advisories/GHSA-mc6h-6j9x-v3gq