The PAM module pam_cap.so of libcap configuration supports group names starting with “@”, during actual parsing, configurations not starting with “@” are incorrectly recognized as group names. This may result in nonintended users being granted an inherited capability set, potentially leading to security risks. Attackers can exploit this vulnerability to achieve local privilege escalation on systems where /etc/security/capability.conf is used to configure user inherited privileges by constructing specific usernames.
CVSS Details
- CVSS 3.1 Base Score: 6.1
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade libcapUpgrade libcap-staticUpgrade libcap-develUpgrade libcap-debuginfo | Mar 26, 2025 | Feb 18, 2025 |
| Amazon_linux_2023 | — | Upgrade libcap-debuginfoUpgrade libcap-debugsourceUpgrade libcapUpgrade libcap-staticUpgrade libcap-devel | Mar 27, 2025 | Feb 18, 2025 |
| Debian | — | Upgrade libcap2 | Mar 28, 2025 | Feb 18, 2025 |
| Huawei Euleros 2_0_sp10 | — | Upgrade libcap | Jul 11, 2025 | Feb 18, 2025 |
| Huawei Euleros 2_0_sp11 | — | Upgrade libcap | Aug 13, 2025 | Jun 9, 2025 |
| Huawei Euleros 2_0_sp12 | — | Upgrade libcap | Jun 11, 2025 | Feb 18, 2025 |
| Huawei Euleros 2_0_sp13 | — | Upgrade libcap | Jul 1, 2025 | Feb 18, 2025 |
| Ubuntu | — | Upgrade libpam-cap | Feb 25, 2025 | Feb 18, 2025 |
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