CVE-2013-2596
Confirmed PUBLISHEDInteger 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...
Recommended Action
Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
At a Glance
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.
- CVE Published
- Apr 13, 2013
- Exploitation Reported
- Sep 15, 2022
- CVSS
- 7.8 High
- EPSS
- —
Affected Versions
| Vendor | Product | Version | Status |
|---|---|---|---|
| n/a |
n/a
|
n/a |
Affected |
CVE References
- RHSA-2015:0695 rhn.redhat.com · Vendor Advisory http://rhn.redhat.com/errata/RHSA-2015-0695.html
- MDVSA-2013:176 mandriva.com · Vendor Advisory http://www.mandriva.com/security/advisories?name=MDVSA-2013:176
- RHSA-2015:0803 rhn.redhat.com · Vendor Advisory http://rhn.redhat.com/errata/RHSA-2015-0803.html
- RHSA-2015:0782 rhn.redhat.com · Vendor Advisory http://rhn.redhat.com/errata/RHSA-2015-0782.html
- 59264 securityfocus.com · VDB Entry http://www.securityfocus.com/bid/59264
Show 11 more references
- [linux-kernel] 20130417 Device driver memory 'mmap()' function helper cleanup marc.info · Mailing List http://marc.info/?l=linux-kernel&m=136616837923938&w=2
- droid-life.com/2013/04/09/root-method-released-for-droid-ra... droid-life.com · CVE Record http://www.droid-life.com/2013/04/09/root-method-released-for-droid-r...
- GitHub — torvalds/linux github.com · CVE Record https://github.com/torvalds/linux/commit/b4cbb197c7e7a68dbad0d491242e...
- oracle.com/technetwork/topics/security/linuxbulletinjan... oracle.com · CVE Record http://www.oracle.com/technetwork/topics/security/linuxbulletinjan201...
- git.kernel.org git.kernel.org · CVE Record http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=...
- forum.xda-developers.com/showthread.php forum.xda-developers.com · CVE Record http://forum.xda-developers.com/showthread.php?t=2255491
- droidrzr.com/index.php/topic/15208-root-motochopper-yet-a... droidrzr.com · CVE Record http://www.droidrzr.com/index.php/topic/15208-root-motochopper-yet-an...
- kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.8.9 kernel.org · CVE Record http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.8.9
- kb.juniper.net/InfoCenter/index kb.juniper.net · CVE Record http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10761
- GitHub — torvalds/linux github.com · CVE Record https://github.com/torvalds/linux/commit/fc9bbca8f650e5f738af8806317c...
- git.kernel.org git.kernel.org · CVE Record http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=...
Recommended Actions
- Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
- Check enrichment artifacts for scanner coverage and available PoCs before rolling remediation validation.
- Use the Pro API to automate enrichment, telemetry, and workflow delivery for VM, SOC, and CTI pipelines.
Known Exploited Vulnerability Sources
Catalogues that list this CVE as a known exploited vulnerability.
Per-source evidence links for KEV attestations are available through the KEVIntel Pro API.
Learn about Pro API access| Source | Added |
|---|---|
| CISA First | 2022-09-15 00:00 UTC |
No detection artifacts or sensor request patterns are available for this CVE yet.
Check back as sensor telemetry and scanner integrations are updated.
Virtual Patch
Compensating WAF rules to help reduce exposure to this CVE. Rule content and deployable vendor exports are available with KEVIntel Enterprise.
KEVIntel does not currently have a virtual patch for this CVE. When available, KEVIntel virtual patches ship as deployable ModSecurity, Cloudflare, and AWS WAF rules.
Enterprise feature. Virtual patch rule content and deployable vendor exports (ModSecurity, Cloudflare, AWS WAF) are available to KEVIntel Enterprise users.
CVSS Scores
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
AV:L/AC:M/Au:N/C:C/I:C/A:C
Exploitation Status
Exploited in the wild
Recorded 2022-09-15 00:00:00 UTC · CISA
Weaknesses (CWE)
-
Integer Overflow or Wraparound
Scanner Integrations
| Scanner | Reference | Detected |
|---|---|---|
| Nessus | https://www.tenable.com/plugins/nessus/89968 | Jun 02, 2025 |
Timeline
Key exploitation, disclosure, scanner coverage, and KEV attestation events for this CVE.
-
09:27 UTC about 1 year ago09:27 UTC · about 1 year ago
Nessus plugin available
Scanner coverage available
-
00:00 UTC almost 4 years ago00:00 UTC · almost 4 years ago
Added to CISA KEV
Listed in the CISA Known Exploited Vulnerabilities catalog
-
01:00 UTC over 13 years ago01:00 UTC · over 13 years ago
CVE published
Vulnerability disclosed publicly
-
00:00 UTC over 13 years ago00:00 UTC · over 13 years ago
CVE ID reserved
Identifier reserved by the CNA
Automate This Intelligence with the Pro API
Confidence scoring, exploit status, sensor telemetry, PoCs, scanner integrations, mentions, and tags are available programmatically for VM, SOC, and CTI workflows.
Pro API Example
GET /api/v2/pro/kevs/CVE-2013-2596
{
"cve_id": "CVE-2013-2596",
"title": "Integer overflow in the fb_mmap function in drivers/video/fbmem.c in the Linu...",
"affected_vendor": "Linux",
"affected_product": "Linux Kernel",
"affected_versions": [
{ "vendor": "...", "product": "...", "status": "affected", "display_label": "..." }
],
"confidence": "Confirmed",
"cvss_score": 7.8,
"epss_score": null,
"exploit_status": {
"exploited_in_the_wild": true,
"active_exploitation_observed": false
},
"sensor_telemetry": { "...": "Pro API fields" },
"proof_of_concepts": [ "..." ],
"scanner_integrations": [ "..." ]
}