Summary
Package updates are available for Amazon Linux 2023 that fix the following vulnerabilities: CVE-2026-4948: A flaw was found in firewalld. A local unprivileged user can exploit this vulnerability by mis-authorizing two runtime D-Bus (Desktop Bus) setters, setZoneSettings2 and setPolicySettings. This mis-authorization allows the user to modify the runtime firewall state without proper authentication, leading to unauthorized changes in network security configurations.
Fixed packages 4
| Release | Package | Fixed in |
|---|---|---|
| Amazon Linux · 2023 | firewalld | 0:1.2.3-1.amzn2023.0.2 |
| Amazon Linux · 2023 | firewalld-filesystem | 0:1.2.3-1.amzn2023.0.2 |
| Amazon Linux · 2023 | firewalld-test | 0:1.2.3-1.amzn2023.0.2 |
| Amazon Linux · 2023 | python3-firewall | 0:1.2.3-1.amzn2023.0.2 |
Vulnerabilities 1
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Medium 5.5
Firewalld: firewalld: local unprivileged user can modify firewall state due to d-bus setter mis-authorization
A flaw was found in firewalld. A local unprivileged user can exploit this vulnerability by mis-authorizing two runtime D-Bus (Desktop Bus) setters, setZoneSettings2 and setPolicySettings. This mis-authorization allows the user to modify the runtime firewall s…
References
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web
https://alas.aws.amazon.com/cve/html/CVE-2026-4948.html