CVE-2013-2596 (GCVE-0-2013-2596)
Vulnerability from cvelistv5 – Published: 2013-04-13 01:00 – Updated: 2025-10-22 00:05Summary
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)
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
17 references
Date Public
2013-04-09 00:00
CISA
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 42c4ecad-654d-4687-811c-3447ecf733e0
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
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
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"id": "CVE-2013-2596",
"lastModified": "2024-12-20T03:56:38.760",
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"published": "2013-04-13T02:59:46.627",
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"redhat_vex": {
"aggregate_severity": "Important",
"current_release_date": "2025-11-21T14:12:48+00:00",
"cve": "CVE-2013-2596",
"id": "CVE-2013-2596",
"initial_release_date": "2013-04-09T00:00:00+00:00",
"product_status:fixed": "854",
"product_status:known_not_affected": "29",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: integer overflow in fb_mmap",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2013/cve-2013-2596.json",
"version": "3"
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
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.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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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.
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