CVE-2022-29225

Zip bomb vulnerability in Envoy

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.

Affected

envoyproxy · envoy

CVSS v3.1 NVD

7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v2.0 NVD

5.0 MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P

EPSS

1.58% chance of exploitation in the next 30 days, 75th percentile

Published

2022-06-09

Updated

2025-04-22

Proof-of-concept exploits (1)

• envoyproxy/envoy/security/advisories/GHSA-75hv-2jjj-89hh

Security advisories

• envoyproxy/envoy/commit/cb4ef0b09200c720dfdb07e097092dd105450343

References

• CVE Record
• NVD entry