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Unchecked Error Condition The advisory has been revoked - it doesn't affect any version of package kernel-headers  (opens in a new tab)

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EPSS
0.31% (23rd percentile)

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  • Snyk IDSNYK-RHEL7-KERNELHEADERS-5186245
  • published26 Jul 2021
  • disclosed5 Apr 2017
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Introduced: 5 Apr 2017

CVE-2017-7889  (opens in a new tab)
CWE-391  (opens in a new tab)

Amendment

The Red Hat security team deemed this advisory irrelevant for RHEL:7.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-headers package and not the kernel-headers package as distributed by RHEL.

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.