keepalived 2.0.8 didn't check for pathnames with symlinks when writing data to a temporary file upon a call to PrintData or PrintStats. This allowed local users to overwrite arbitrary files if fs.protected_symlinks is set to 0, as demonstrated by a symlink from /tmp/keepalived.data or /tmp/keepalived.stats to /etc/passwd.
CVSS Details
- CVSS 3.1 Base Score: 7
- CVSS 3.0 Base Score: 4.7
- CVSS 3.0 Vector: (CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | alpine-linux-upgrade-keepalived | Jan 10, 2019 | Nov 8, 2018 | |
| Amazon Linux Ami 2 | amazon-linux-ami-2-upgrade-keepalivedamazon-linux-ami-2-upgrade-keepalived-debuginfo | Apr 27, 2020 | Nov 8, 2018 | |
| Amazon_linux | — | amazon-linux-upgrade-keepalived | Aug 13, 2020 | Nov 8, 2018 |
| Centos_linux | — | centos-upgrade-keepalivedcentos-upgrade-keepalived-debuginfo | Aug 28, 2019 | Nov 8, 2018 |
| Debian | debian-upgrade-keepalived | Jul 30, 2024 | Nov 8, 2018 | |
| Gentoo Linux | gentoo-linux-upgrade-sys-cluster-keepalived | Mar 11, 2019 | Nov 8, 2018 | |
| Huawei Euleros 2_0_sp3 | huawei-euleros-2_0_sp3-upgrade-keepalived | Sep 28, 2020 | Nov 8, 2018 | |
| Huawei Euleros 2_0_sp5 | huawei-euleros-2_0_sp5-upgrade-keepalived | Dec 27, 2019 | Nov 8, 2018 | |
| Huawei Euleros 2_0_sp8 | huawei-euleros-2_0_sp8-upgrade-keepalived | Feb 26, 2020 | Nov 8, 2018 | |
| Oracle_linux | — | oracle-linux-upgrade-keepalived | Jul 21, 2020 | Nov 8, 2018 |
| Redhat_linux | — | redhat-upgrade-keepalivedredhat-upgrade-keepalived-debuginfo | Aug 7, 2019 | Nov 8, 2018 |
| Suse | — | suse-upgrade-keepalived | Dec 22, 2018 | Nov 8, 2018 |
| Ubuntu | no-fix-ubuntu-package | Jun 26, 2025 | Nov 8, 2018 | |
| Vmware Photon_os | vmware-photon_os_update_tdnf | Jan 20, 2025 | Nov 8, 2018 |
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