Vulnerability Details : CVE-2013-2596

Public exploit exists!
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.
Published 2013-04-13 02:59:47
Updated 2025-02-07 15:15:13
Source MITRE
View at NVD,   CVE.org
Vulnerability category: Overflow

Products affected by CVE-2013-2596

CVE-2013-2596 is in the CISA Known Exploited Vulnerabilities Catalog

CISA vulnerability name:
Linux Kernel Integer Overflow Vulnerability
CISA required action:
Apply updates per vendor instructions.
CISA description:
Linux kernel fb_mmap function in drivers/video/fbmem.c contains an integer overflow vulnerability that allows for privilege escalation.
Notes:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=fc9bbca8f650e5f738af8806317c0a041a48ae4a; https://nvd.nist.gov/vuln/detail/CVE-2013-2596
Added on 2022-09-15 Action due date 2022-10-06

Exploit prediction scoring system (EPSS) score for CVE-2013-2596

EPSS FAQ
0.18%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 55 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2013-2596

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
6.9
 MEDIUM AV:L/AC:M/Au:N/C:C/I:C/A:C
3.4
10.0
 NIST
7.8
 HIGH CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
1.8
5.9
 134c704f-9b21-4f2e-91b3-4a467353bcc0 2025-02-07
7.8
 HIGH CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
1.8
5.9
 NIST 2024-12-20

CWE ids for CVE-2013-2596

  • Assigned by: nvd@nist.gov (Primary)
  • The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.
    Assigned by:
    • 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)
    • nvd@nist.gov (Primary)

References for CVE-2013-2596

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