CVE-2013-2596

CVE Published	2013-04-13
Related CWE(s)	CWE-190: Integer Overflow or Wraparound
Related Vendor(s)	linux, motorola
Related Product(s)	android, linux_kernel
Exploitation Reported (CISA KEV)	2022-09-15
CVSS 3 Base Score	7.8 (HIGH)
CVSS 3 Attack Complexity	LOW
CVSS 3 Attack Vector	LOCAL

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.

Cyber Threat Graph Context

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Associated CAPEC Patterns

Forced Integer Overflow (CAPEC-92)

This attack forces an integer variable to go out of range. The integer variable is often used as an offset such as size of memory allocation or similarly. The attacker would typically control the value of such variable and try to get it out of range. For instance the integer in question is incremented past the maximum possible value, it may wrap to become a very small, or negative number, therefore providing a very incorrect value which can lead to unexpected behavior. At worst the attacker can execute arbitrary code.

References

CVE-2013-2596

Cyber Threat Graph Context

Associated CAPEC Patterns

Forced Integer Overflow (CAPEC-92)

References

CVE.org

NIST National Vulnerability Database

CISA Known Exploited Vulnerabilities