CVE-2024-23325
Envoy crashes in Proxy protocol when using an address type that isn’t supported by the OS.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.75%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Envoy is a high-performance edge/middle/service proxy. Envoy crashes in Proxy protocol when using an address type that isn’t supported by the OS. Envoy is susceptible to crashing on a host with IPv6 disabled and a listener config with proxy protocol enabled when it receives a request where the client presents its IPv6 address. It is valid for a client to present its IPv6 address to a target server even though the whole chain is connected via IPv4. This issue has been addressed in released 1.29.1, 1.28.1, 1.27.3, and 1.26.7. Users are advised to upgrade. There are no known workarounds for this vulnerability.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.75% probability · 53th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-248, CWE-755
- Affected
- envoyproxy/envoy
- Source
- security-advisories@github.com
References
- https://github.com/envoyproxy/envoy/commit/bacd3107455b8d387889467725eb72aa0d5b5237Patch, Vendor Advisory
- https://github.com/envoyproxy/envoy/security/advisories/GHSA-5m7c-mrwr-pm26Vendor Advisory
- https://github.com/envoyproxy/envoy/commit/bacd3107455b8d387889467725eb72aa0d5b5237Patch, Vendor Advisory
- https://github.com/envoyproxy/envoy/security/advisories/GHSA-5m7c-mrwr-pm26Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.