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CVE-2013-2596 (GCVE-0-2013-2596)

Vulnerability from cvelistv5 – Published: 2013-04-13 01:00 – Updated: 2025-10-22 00:05
VLAI CISA Previdian
Summary
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.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: active Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-05-01 03:55 UTC
CWE
  • n/a
  • CWE-190 - Integer Overflow or Wraparound
Assigner
References
Date Public
2013-04-09 00:00
CISA
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 42c4ecad-654d-4687-811c-3447ecf733e0

Vulnerability ID: CVE-2013-2596

Status: Confirmed

Status Updated: 2022-09-15 00:00 UTC

Exploited: Yes

Timestamps
First Seen: 2022-09-15
Asserted: 2022-09-15
Scope
Notes: KEV entry: Linux Kernel Integer Overflow Vulnerability | Affected: Linux / Kernel | Description: Linux kernel fb_mmap function in drivers/video/fbmem.c contains an integer overflow vulnerability that allows for privilege escalation. | Required action: Apply updates per vendor instructions. | Due date: 2022-10-06 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=fc9bbca8f650e5f738af8806317c0a041a48ae4a; https://nvd.nist.gov/vuln/detail/CVE-2013-2596
Evidence

Type: Vendor Report

Signal: Successful Exploitation

Confidence: 80%

Source: cisa-kev

Details
Cwes CWE-189
Feed CISA Known Exploited Vulnerabilities Catalog
Product Kernel
Due Date 2022-10-06
Date Added 2022-09-15
Vendorproject Linux
Vulnerabilityname Linux Kernel Integer Overflow Vulnerability
Knownransomwarecampaignuse Unknown
References
Created: 2026-02-02 12:27 UTC | Updated: 2026-02-06 07:17 UTC
Previdian
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: ec6afc59-894d-46f1-b335-0a20fc3a7811

Vulnerability ID: CVE-2013-2596

Status: Confirmed

Status Updated: 2022-09-15 00:00 UTC

Exploited: Yes

Timestamps
First Seen: 2022-09-15
Asserted: 2022-09-15
Scope
Notes: KEVIntel entry: 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... | Affected: Linux / Linux Kernel | CVSS: 7.8 (HIGH) | Used in malware: unknown | Not yet in CISA KEV: False
Evidence

Type: Public Report

Signal: Successful Exploitation

Confidence: 70%

Source: kevintel

Details
Feed KEVIntel (kevintel.com)
Title 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...
Vendor Linux
Product Linux Kernel
Added Date 2022-09-15T00:00:00.000Z
Cvss Score 7.8
Epss Score None
Cvss Severity HIGH
Epss Percentile None
Used In Malware unknown
Ahead Of Cisa Kev None
Not Yet In Cisa Kev False
References
Created: 2026-06-23 14:05 UTC | Updated: 2026-07-10 06:14 UTC
Show details on NVD website
To clipboard 

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                  "url": "http://rhn.redhat.com/errata/RHSA-2015-0803.html"
                },
                {
                  "name": "http://forum.xda-developers.com/showthread.php?t=2255491",
                  "refsource": "MISC",
                  "url": "http://forum.xda-developers.com/showthread.php?t=2255491"
                },
                {
                  "name": "http://www.droidrzr.com/index.php/topic/15208-root-motochopper-yet-another-android-root-exploit/",
                  "refsource": "MISC",
                  "url": "http://www.droidrzr.com/index.php/topic/15208-root-motochopper-yet-another-android-root-exploit/"
                },
                {
                  "name": "http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.8.9",
                  "refsource": "CONFIRM",
                  "url": "http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.8.9"
                },
                {
                  "name": "RHSA-2015:0782",
                  "refsource": "REDHAT",
                  "url": "http://rhn.redhat.com/errata/RHSA-2015-0782.html"
                },
                {
                  "name": "http://kb.juniper.net/InfoCenter/index?page=content\u0026id=JSA10761",
                  "refsource": "CONFIRM",
                  "url": "http://kb.juniper.net/InfoCenter/index?page=content\u0026id=JSA10761"
                },
                {
                  "name": "https://github.com/torvalds/linux/commit/fc9bbca8f650e5f738af8806317c0a041a48ae4a",
                  "refsource": "CONFIRM",
                  "url": "https://github.com/torvalds/linux/commit/fc9bbca8f650e5f738af8806317c0a041a48ae4a"
                },
                {
                  "name": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=fc9bbca8f650e5f738af8806317c0a041a48ae4a",
                  "refsource": "CONFIRM",
                  "url": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=fc9bbca8f650e5f738af8806317c0a041a48ae4a"
                }
              ]
            }
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "assignerShortName": "mitre",
        "cveId": "CVE-2013-2596",
        "datePublished": "2013-04-13T01:00:00.000Z",
        "dateReserved": "2013-03-15T00:00:00.000Z",
        "dateUpdated": "2025-10-22T00:05:43.277Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.