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high7.8Known exploited

CVE-2013-2596

Linux Kernel Integer Overflow Vulnerability

Exploited in the wild

This vulnerability is on a Known Exploited Vulnerabilities catalogue, added 2022-09-15. Federal due date: 2022-10-06.

Apply updates per vendor instructions.

Impact

Integer overflow in the fb_mmap function in drivers/video/fbmem.c in the Linux kernel before 3.8.9, as used in a certain Motorola build of Android 4.1.2 and other products, allows local users to create a read-write memory mapping for the entirety of kernel memory, and consequently gain privileges, via crafted /dev/graphics/fb0 mmap2 system calls, as demonstrated by the Motochopper pwn program.

Affected products

VendorProductAffected versions
LinuxLinux Kernel
from 2.6.12 before 3.0.75
from 3.1 before 3.2.45
from 3.3 before 3.4.42
from 3.5 before 3.8.9
MotorolaAndroid
Version 4.1.2

Weakness classification

CWE-190

References