CVE-2016-6516

high
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Description

Race condition in the ioctl_file_dedupe_range function in fs/ioctl.c in the Linux kernel through 4.7 allows local users to cause a denial of service (heap-based buffer overflow) or possibly gain privileges by changing a certain count value, aka a "double fetch" vulnerability.

References

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=10eec60ce79187686e052092e5383c99b4420a20

http://www.openwall.com/lists/oss-security/2016/07/31/6

http://www.securityfocus.com/bid/92259

https://bugzilla.redhat.com/show_bug.cgi?id=1362457

https://github.com/torvalds/linux/commit/10eec60ce79187686e052092e5383c99b4420a20

Details

Source: MITRE

Published: 2016-08-06

Updated: 2016-11-28

Type: CWE-119

Risk Information

CVSS v2

Base Score: 4.4

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

Impact Score: 6.4

Exploitability Score: 3.4

Severity: MEDIUM

CVSS v3

Base Score: 7.4

Vector: CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Impact Score: 5.9

Exploitability Score: 1.4

Severity: HIGH

Vulnerable Software

Configuration 1

OR

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to 4.7 (inclusive)

Tenable Plugins

View all (1 total)

IDNameProductFamilySeverity
124829EulerOS Virtualization for ARM 64 3.0.1.0 : kernel (EulerOS-SA-2019-1506)NessusHuawei Local Security Checks
high