CVE Vulnerabilities

CVE-2014-7826

NULL Pointer Dereference

Published: Nov 10, 2014 | Modified: Feb 13, 2023
CVSS 3.x
7.8
HIGH
Source:
NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.x
7.2 HIGH
AV:L/AC:L/Au:N/C:C/I:C/A:C
RedHat/V2
RedHat/V3
Ubuntu

kernel/trace/trace_syscalls.c in the Linux kernel through 3.17.2 does not properly handle private syscall numbers during use of the ftrace subsystem, which allows local users to gain privileges or cause a denial of service (invalid pointer dereference) via a crafted application.

Weakness

A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit.

Affected Software

Name Vendor Start Version End Version
Linux_kernel Linux 2.6.32 (including) 3.2.65 (excluding)
Linux_kernel Linux 3.3 (including) 3.4.106 (excluding)
Linux_kernel Linux 3.5 (including) 3.10.60 (excluding)
Linux_kernel Linux 3.11 (including) 3.12.33 (excluding)
Linux_kernel Linux 3.13 (including) 3.14.24 (excluding)
Linux_kernel Linux 3.15 (including) 3.16.35 (excluding)
Linux_kernel Linux 3.17 (including) 3.17.3 (excluding)

Potential Mitigations

References