CVE-2015-7837
The Linux kernel, as used in Red Hat Enterprise Linux 7, kernel-rt, and Enterprise MRG 2 and when booted with UEFI Secure Boot enabled, allows local users to bypass intended securelevel/secureboot restrictions by leveraging improper handling of secure_boot flag across kexec reboot.
| Software | From | Fixed in |
|---|---|---|
| redhat / enterprise_linux_desktop | 7.0 | 7.0.x |
| redhat / enterprise_linux_workstation | 7.0 | 7.0.x |
| redhat / enterprise_linux | 7.0 | 7.0.x |
| redhat / enterprise_linux | 7.2 | 7.2.x |
| redhat / enterprise_linux | 7.3 | 7.3.x |
| redhat / enterprise_linux_server_aus | 7.3 | 7.3.x |
| redhat / enterprise_linux_server_aus | 7.4 | 7.4.x |
| redhat / kernel-rt | 7.0 | 7.0.x |
| redhat / enterprise_mrg | 2.0 | 2.0.x |
- http://rhn.redhat.com/errata/RHSA-2015-2152.html
- http://rhn.redhat.com/errata/RHSA-2015-2411.html
- http://www.openwall.com/lists/oss-security/2015/10/15/6
- http://www.securityfocus.com/bid/77097
- https://bugzilla.redhat.com/show_bug.cgi?id=1272472
- https://github.com/mjg59/linux/commit/4b2b64d5a6ebc84214755ebccd599baef7c1b798
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