CVE-2022-37434
CRITICAL severity · CVSS 9.8 · Out-of-bounds write
9.8CVSS CRITICAL
Summary
zlib through 1.2.12 has a heap-based buffer over-read or buffer overflow in inflate in inflate.c via a large gzip header extra field. NOTE: only applications that call inflateGetHeader are affected. Some common applications bundle the affected zlib source code but may be unable to call inflateGetHeader (e.g., see the nodejs/node reference).
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Exploit probability (EPSS)16%
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Official patch: http://www.openwall.com/lists/oss-security/2022/08/09/1 ↗
Additional information
- NVD record
- http://www.openwall.com/lists/oss-security/2022/08/09/1Patch
- http://seclists.org/fulldisclosure/2022/Oct/37Advisory
- http://seclists.org/fulldisclosure/2022/Oct/38Advisory
- http://seclists.org/fulldisclosure/2022/Oct/41Advisory
- http://seclists.org/fulldisclosure/2022/Oct/42Advisory
- http://www.openwall.com/lists/oss-security/2022/08/05/2Advisory
- https://github.com/curl/curl/issues/9271Advisory
- https://github.com/ivd38/zlib_overflowAdvisory