CVE-2022-29225
This may allow an attacker to zip bomb the decompressor by sending a small highly compressed payload.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.58%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Envoy is a cloud-native high-performance proxy. In versions prior to 1.22.1 secompressors accumulate decompressed data into an intermediate buffer before overwriting the body in the decode/encodeBody. This may allow an attacker to zip bomb the decompressor by sending a small highly compressed payload. Maliciously constructed zip files may exhaust system memory and cause a denial of service. Users are advised to upgrade. Users unable to upgrade may consider disabling decompression.
- 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
- 1.58% probability · 74th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-400, CWE-409
- Affected
- envoyproxy/envoy
- Source
- security-advisories@github.com
References
- https://github.com/envoyproxy/envoy/commit/cb4ef0b09200c720dfdb07e097092dd105450343Patch, Third Party Advisory
- https://github.com/envoyproxy/envoy/security/advisories/GHSA-75hv-2jjj-89hhExploit, Third Party Advisory
- https://github.com/envoyproxy/envoy/commit/cb4ef0b09200c720dfdb07e097092dd105450343Patch, Third Party Advisory
- https://github.com/envoyproxy/envoy/security/advisories/GHSA-75hv-2jjj-89hhExploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.