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CVE-2014-7843

Good to know:

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Date: November 29, 2014

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.

Language: C

Severity Score

Related Resources (10)

http://secunia.com/advisories/62305
http://www.openwall.com/lists/oss-security/2014/11/13/5
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=97fc15436b36ee3956efad83e22a557991f7d19d
https://people.canonical.com/~ubuntu-security/cve/CVE-2014-7843
https://bugzilla.redhat.com/show_bug.cgi?id=1163744
https://nvd.nist.gov/vuln/detail/CVE-2014-7843
http://www.securityfocus.com/bid/71082
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.17.4
https://github.com/torvalds/linux/commit/97fc15436b36ee3956efad83e22a557991f7d19d
https://www.mend.io/vulnerability-database/CVE-2014-7843

Severity Score

Weakness Type (CWE)

Code

CWE-17

Top Fix

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CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): HIGH
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): LOCAL
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): COMPLETE
Additional information:

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