High severity · published Jun 9, 2022
CVE-2022-29225
Envoy is a cloud-native high-performance proxy
7.5
CVSS
1.6%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.6% · higher than 75% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
EN
Envoy · Envoyproxy
before 1.22.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-29225
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-29225
Patch
https://github.com/envoyproxy/envoy/commit/cb4ef0b09200c720dfdb07e097092dd105450343
Exploit
https://github.com/envoyproxy/envoy/security/advisories/GHSA-75hv-2jjj-89hh
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