Missing Initialization of a Variable Affecting kernel-bootwrapper package, versions <0:3.10.0-327.el7
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Test your applications- Snyk ID SNYK-RHEL7-KERNELBOOTWRAPPER-1437641
- published 26 Jul 2021
- disclosed 14 Oct 2015
Introduced: 14 Oct 2015
CVE-2015-7837 Open this link in a new tabHow to fix?
Upgrade RHEL:7 kernel-bootwrapper to version 0:3.10.0-327.el7 or higher.
This issue was patched in RHSA-2015:2152.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-bootwrapper package and not the kernel-bootwrapper package as distributed by RHEL.
See How to fix? for RHEL:7 relevant fixed versions and status.
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.
References
- http://www.securityfocus.com/bid/77097
- https://bugzilla.redhat.com/show_bug.cgi?id=1272472
- https://github.com/mjg59/linux/commit/4b2b64d5a6ebc84214755ebccd599baef7c1b798
- https://access.redhat.com/security/cve/CVE-2015-7837
- http://www.openwall.com/lists/oss-security/2015/10/15/6
- http://rhn.redhat.com/errata/RHSA-2015-2152.html
- http://rhn.redhat.com/errata/RHSA-2015-2411.html
- https://access.redhat.com/errata/RHSA-2015:2152