CVE-2014-7843

MEDIUM
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Description

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.

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=97fc15436b36ee3956efad83e22a557991f7d19d

http://secunia.com/advisories/62305

http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.17.4

http://www.openwall.com/lists/oss-security/2014/11/13/5

http://www.securityfocus.com/bid/71082

https://bugzilla.redhat.com/show_bug.cgi?id=1163744

https://github.com/torvalds/linux/commit/97fc15436b36ee3956efad83e22a557991f7d19d

Details

Source: MITRE

Published: 2014-11-30

Updated: 2015-01-22

Type: CWE-17

Risk Information

CVSS v2

Base Score: 4.9

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

Impact Score: 6.9

Exploitability Score: 3.9

Severity: MEDIUM

Vulnerable Software

Configuration 1

OR

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:arm64:* versions up to 3.17.3 (inclusive)

Tenable Plugins

View all (8 total)

IDNameProductFamilySeverity
131805EulerOS 2.0 SP5 : kernel (EulerOS-SA-2019-2531)NessusHuawei Local Security Checks
high
124796EulerOS Virtualization for ARM 64 3.0.1.0 : kernel (EulerOS-SA-2019-1472)NessusHuawei Local Security Checks
high
80515Ubuntu 14.10 : linux vulnerabilities (USN-2468-1)NessusUbuntu Local Security Checks
medium
80514Ubuntu 14.04 LTS : linux-lts-utopic vulnerabilities (USN-2467-1)NessusUbuntu Local Security Checks
medium
80513Ubuntu 14.04 LTS : linux vulnerabilities (USN-2466-1)NessusUbuntu Local Security Checks
medium
80512Ubuntu 12.04 LTS : linux-lts-trusty vulnerabilities (USN-2465-1)NessusUbuntu Local Security Checks
medium
79363Fedora 20 : kernel-3.17.3-200.fc20 (2014-15200)NessusFedora Local Security Checks
medium
79319Fedora 21 : kernel-3.17.3-300.fc21 (2014-15159)NessusFedora Local Security Checks
medium