CVE-2014-7843

Medium

The __clear_user function in arch/arm64/lib/clear_user.S in the Linux kernel before 3.17.4 on the ARM64 platform allows local users to cause a denial of service (system crash) by reading one byte beyond a /dev/zero page boundary.

Package Linux Kernel
Published 2014-11-30
Last modified 2026-05-06
CVSS version 2.0
Patch available
Awaiting data

CVSS 2.0 score

4.9

out of 10
Medium
Attack Vector
Local
Attack Complexity
Low
Privileges Required
User Interaction
Scope
Confidentiality
Low
Integrity
None
Availability
Vector string
AV:L/AC:L/Au:N/C:N/I:N/A:C

Weakness type

CWE-17

CVE-2014-7843 is classified as CWE-17

See CWE-17 on MITRE CWE for full details on this weakness type.

References

7 total
Showing 5 of 7 references View all on NVD

Frequently asked questions

  • What is CVE-2014-7843?

    CVE-2014-7843 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.9 out of 10 . CVE-2014-7843 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • What is the CVSS score for CVE-2014-7843?

    CVE-2014-7843 has a CVSS score of 4.9 out of 10, rated Medium severity (CVSS 2.0). The vector string is AV:L/AC:L/Au:N/C:N/I:N/A:C .

  • Is there a patch available for CVE-2014-7843?

    Monitor the NIST NVD and your Linux distribution's security advisories for CVE-2014-7843 patch availability.

  • Is CVE-2014-7843 actively exploited?

    No. CVE-2014-7843 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

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