Incorrect Permission Assignment for Critical Resource Affecting kernel-uek-debug package, versions <0:2.6.39-400.298.1.el5uek
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Test your applications- Snyk ID SNYK-ORACLE5-KERNELUEKDEBUG-2522821
- published 10 Apr 2022
- disclosed 17 Apr 2017
Introduced: 17 Apr 2017
CVE-2017-7889 Open this link in a new tabHow to fix?
Upgrade Oracle:5
kernel-uek-debug
to version 0:2.6.39-400.298.1.el5uek or higher.
This issue was patched in ELSA-2017-3658
.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-uek-debug
package and not the kernel-uek-debug
package as distributed by Oracle
.
See How to fix?
for Oracle:5
relevant fixed versions and status.
The mm subsystem in the Linux kernel through 3.2 does not properly enforce the CONFIG_STRICT_DEVMEM protection mechanism, which allows local users to read or write to kernel memory locations in the first megabyte (and bypass slab-allocation access restrictions) via an application that opens the /dev/mem file, related to arch/x86/mm/init.c and drivers/char/mem.c.
References
- https://linux.oracle.com/cve/CVE-2017-7889.html
- https://linux.oracle.com/errata/ELSA-2017-1842.html
- https://linux.oracle.com/errata/ELSA-2017-1842-1.html
- https://linux.oracle.com/errata/ELSA-2017-3657.html
- https://linux.oracle.com/errata/ELSA-2017-3658.html
- https://github.com/torvalds/linux/commit/a4866aa812518ed1a37d8ea0c881dc946409de94
- http://www.openwall.com/lists/oss-security/2017/04/16/4
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=a4866aa812518ed1a37d8ea0c881dc946409de94
- http://www.securityfocus.com/bid/97690
- http://www.debian.org/security/2017/dsa-3945
- https://access.redhat.com/errata/RHSA-2017:2669
- https://access.redhat.com/errata/RHSA-2017:2077
- https://access.redhat.com/errata/RHSA-2017:1842
- https://usn.ubuntu.com/3583-2/
- https://usn.ubuntu.com/3583-1/
- https://access.redhat.com/errata/RHSA-2018:1854
- https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=b8f254aa17f720053054c4ecff3920973a83b9d6