Linux · Kernel
CVE-2013-2596
Linux Kernel Integer Overflow Vulnerability
O que é
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.
CISA: Linux kernel fb_mmap function in drivers/video/fbmem.c contains an integer overflow vulnerability that allows for privilege escalation.
O que fazer
Apply updates per vendor instructions.
Prazo para as agências federais dos EUA: 6 de outubro de 2022
- Adicionada à lista da CISA
- 15 de setembro de 2022
- Publicada
- 13 de abril de 2013
- Gravidade
- Alto 7,8 CVSS 3.1
- Chance de ataques nos próximos 30 dias (EPSS)
- 3,2% entre os 11,9% mais altos de todas as vulnerabilidades conhecidas
- Fraqueza
- CWE-189
- Mais detalhes
- NVD · CVE.org · CISA
Todas as referências (16)
- http://rhn.redhat.com/errata/RHSA-2015-0695.html
- http://www.mandriva.com/security/advisories?name=MDVSA-2013:176
- http://rhn.redhat.com/errata/RHSA-2015-0803.html
- http://rhn.redhat.com/errata/RHSA-2015-0782.html
- http://www.securityfocus.com/bid/59264
- http://www.droid-life.com/2013/04/09/root-method-released-for-droid-razr-hd-running-android-4-1-2-other-devic…
- http://marc.info/?l=linux-kernel&m=136616837923938&w=2
- https://github.com/torvalds/linux/commit/b4cbb197c7e7a68dbad0d491242e3ca67420c13e
- http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=b4cbb197c7e7a68dbad0d491242e3…
- http://forum.xda-developers.com/showthread.php?t=2255491
- http://www.droidrzr.com/index.php/topic/15208-root-motochopper-yet-another-android-root-exploit/
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.8.9
- http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10761
- https://github.com/torvalds/linux/commit/fc9bbca8f650e5f738af8806317c0a041a48ae4a
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=fc9bbca8f650e5f738af8806317c0…
Mais falhas exploradas de Linux
| Adicionado | Vulnerabilidade | Produto | Gravidade | Chance de ataque |
|---|---|---|---|---|
| 18 de set. de 2026 | Improper Check for Unusual or Exceptional Conditions | Kernel | Crítica 9,8 | 3,3% |
| 18 de set. de 2026 | Race Condition | Kernel | Alto 7,8 | 1,6% |
| 18 de set. de 2026 | Out-of-Bounds Write | Kernel | Alto 8,8 | 0,9% |
| 27 de ago. de 2026 | Unspecified | Kernel | Alto 7,8 | 0,7% |
| 26 de ago. de 2026 | Out-of-Bounds Write | Kernel | Alto 7,8 | 8,9% |
| 2 de jun. de 2026 | Improper Authentication | Kernel | Alto 7,8 | 5,5% |
| 1 de mai. de 2026 | Incorrect Resource Transfer Between Spheres | Kernel | Alto 7,8 | 98% |
| 26 de jan. de 2026 | Integer Overflow | Kernel | Alto 7,8 | 15% |
Fontes: Known Exploited Vulnerabilities (CISA, domínio público), CVE records (cve.org) e EPSS (FIRST). A chance de ataque é a estimativa EPSS de que alguém tente explorar a falha nos próximos 30 dias.