CVE-2023-35943
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.3 High
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
21.2%
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 decodeHeadersand 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.
Affected configurations
| Vendor | Product | Version | CPE |
|---|---|---|---|
| envoyproxy | envoy | * | cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:* |
| envoyproxy | envoy | * | cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:* |
| envoyproxy | envoy | * | cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:* |
| envoyproxy | envoy | * | cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:* |
CNA Affected
[
{
"vendor": "envoyproxy",
"product": "envoy",
"versions": [
{
"version": ">= 1.26.0, < 1.26.4",
"status": "affected"
},
{
"version": ">= 1.25.0, < 1.25.9",
"status": "affected"
},
{
"version": ">= 1.24.0, < 1.24.10",
"status": "affected"
},
{
"version": "< 1.23.12",
"status": "affected"
}
]
}
]Related
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.3 High
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
21.2%