CVE-2013-2596
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…
- 7.8HighCVSS base score
- 3.2%Exploitation in 30 daysEPSS · top 12% of all CVEs
- YesKnown exploitedin CISA's KEV since 15 Sept 2022
- YesPublic exploitsa reference or SSVC says so
Description
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.
Exploited in the wild
CISA lists this vulnerability in its Known Exploited Vulnerabilities catalog as Linux Kernel Integer Overflow Vulnerability.
- Added
- 15 Sept 2022
- Fix due (US federal)
- 6 Oct 2022
- Used by ransomware
- Not known
Apply updates per vendor instructions.
ENISA's EU Vulnerability Database lists it as exploited, from CISA's KEV, since 15 Sept 2022.
Public exploit
An exploit or proof of concept is public: anyone can try it against an unpatched system. CISA's SSVC rates its exploitation: it is being exploited.
Timeline
ID reserved
By mitre
- 29 days later
· 29 days later
Published
- 9 years later
· 9 years later
Added to CISA KEV
Known exploited in the wild
- 3 years later
· 3 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| CISA-ADPADP (enrichment) | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Analyzed | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 3.2% · top 12% of all CVEs (10 Nov 2026)
- CISA SSVC
- Exploitation: active · Automatable: no · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Affected products
n/a
- affected n/a
References
17
- RHSA-2015:0695 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- 59264 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- http://www.droid-life.com/2013/04/09/root-method-released-for-droid-razr-hd-running-android-4-1-2-other-devices-too/ (opens in a new tab)x_refsource_MISCx_transferred
- MDVSA-2013:176 (opens in a new tab)vendor-advisoryx_refsource_MANDRIVAx_transferred
- [linux-kernel] 20130417 Device driver memory 'mmap()' function helper cleanup (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- https://github.com/torvalds/linux/commit/b4cbb197c7e7a68dbad0d491242e3ca67420c13e (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=b4cbb197c7e7a68dbad0d491242e3ca67420c13e (opens in a new tab)x_refsource_CONFIRMx_transferred
- RHSA-2015:0803 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- http://forum.xda-developers.com/showthread.php?t=2255491 (opens in a new tab)x_refsource_MISCx_transferred
- http://www.droidrzr.com/index.php/topic/15208-root-motochopper-yet-another-android-root-exploit/ (opens in a new tab)x_refsource_MISCx_transferred
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.8.9 (opens in a new tab)x_refsource_CONFIRMx_transferred
- RHSA-2015:0782 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10761 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://github.com/torvalds/linux/commit/fc9bbca8f650e5f738af8806317c0a041a48ae4a (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=fc9bbca8f650e5f738af8806317c0a041a48ae4a (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2013-2596 (opens in a new tab)government-resource
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- CISA KEV catalog (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2013-2538 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2013-2596)Record last updated .