CVE-2014-7843

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Summary

CVECVE-2014-7843
StatePUBLISHED
Assignerredhat
Source PriorityCVE Program / NVD first with legacy fallback
Published2014-11-30 01:59:05 UTC
Updated2026-05-06 22:30:45 UTC
DescriptionThe __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.

Risk And Classification

Primary CVSS: v2.0 4.9 from [email protected]

AV:L/AC:L/Au:N/C:N/I:N/A:C

Problem Types: CWE-17 | n/a

CVSS v2.0 Breakdown

Access Vector
Local
Access Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Complete

AV:L/AC:L/Au:N/C:N/I:N/A:C

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
Linux Kernel CVE-2014-7843 Local Denial of Service Vulnerability af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com
www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.17.4 af854a3a-2127-422b-91ae-364da2661108 www.kernel.org Vendor Advisory
oss-security - CVE-2014-7843 Linux kernel: aarch64: copying from /dev/zero causes local DoS af854a3a-2127-422b-91ae-364da2661108 www.openwall.com
Bug 1163744 – CVE-2014-7843 kernel: aarch64: copying from /dev/zero causes local DoS af854a3a-2127-422b-91ae-364da2661108 bugzilla.redhat.com Patch, Vendor Advisory
arm64: __clear_user: handle exceptions on strb · torvalds/linux@97fc154 · GitHub af854a3a-2127-422b-91ae-364da2661108 github.com Patch, Vendor Advisory
Security Advisory SA62305 - Ubuntu update for kernel - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com
kernel/git/torvalds/linux.git - Linux kernel source tree af854a3a-2127-422b-91ae-364da2661108 git.kernel.org
kernel/git/torvalds/linux.git - Linux kernel source tree MITRE git.kernel.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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