CVE-2021-20177
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2021-20177
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-20177.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2021-20177
- Downstream
- Related
- Published
- 2021-05-26T21:15:08Z
- Modified
- 2025-08-09T20:01:27Z
- Severity
-
- 4.4 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- [none]
- Details
-
A flaw was found in the Linux kernel's implementation of string matching within a packet. A privileged user (with root or CAPNETADMIN) when inserting iptables rules could insert a rule which can panic the system. Kernel before kernel 5.5-rc1 is affected.
- References