Auth bypass in Linux Kernel
CVE-2012-0055
OverlayFS in the Linux kernel before 3.0.0-16.28, as used in Ubuntu 10.0.4 LTS and 11.10, is missing inode security checks which could allow attackers to bypass security restrictions and perform unauthorized actions.
Vulnerability class: Broken Access Control
EPSS: 0.012 (66.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Linux Linux_kernel
- Linux Kernel Overlayfs — versions as used in Ubuntu 10.0.4 LTS and 11.10, before 3.0.0-16.28
- Canonical Ubuntu_linux — versions 10.04, 11.10
Weakness classification (CWE)
References
- secalert@redhat.com (mailing-list, x_refsource_MLIST, Exploit, Patch, Mailing List, Third Party Advisory)
- secalert@redhat.com (Third Party Advisory, x_refsource_MISC, Issue Tracking)
- secalert@redhat.com (Third Party Advisory, x_refsource_MISC)
- secalert@redhat.com (x_refsource_CONFIRM, Third Party Advisory)
- secalert@redhat.com (x_refsource_CONFIRM, Third Party Advisory)
- secalert@redhat.com (x_refsource_CONFIRM, Third Party Advisory)
- secalert@redhat.com (x_refsource_CONFIRM, Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2012-0055?
- CVE-2012-0055 is a high-severity vulnerability in Linux Kernel, classified under Missing Authorization. CVSS score: 7.8/10. Published 2020-02-19.
- How severe is CVE-2012-0055?
- High severity. CVSS v3 base score is 7.8 out of 10.