CVE-2012-0056 EXPLOIT
6.9
MEDIUM · CVSS 2.0 · EPSS 10.8% (pctl 96)
Patch early
A public exploit exists.
Description
The mem_write function in the Linux kernel before 3.2.2, when ASLR is disabled, does not properly check permissions when writing to /proc/<pid>/mem, which allows local users to gain privileges by modifying process memory, as demonstrated by Mempodipper.
Scoring
| CVSS | 6.9 (MEDIUM, v2.0) |
|---|---|
| Vector | AV:L/AC:M/Au:N/C:C/I:C/A:C |
| EPSS | 10.75% — more likely to be exploited than 96% of all CVEs |
| Weakness | CWE-264 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2012-01-27 |
| Last modified | 2026-06-16 |
Affected (1)
| Vendor | Product |
|---|---|
| linux | linux kernel |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | Linux Kernel 2.6.39 < 3.2.2 (Gentoo / Ubuntu x86/x64) - 'Mempodipper' Local Privilege Escalation (1) | 2012-01-23 |
| exploit-db | Linux Kernel 2.6.39 < 3.2.2 (x86/x64) - 'Mempodipper' Local Privilege Escalation (2) | 2012-01-12 |
References
- http://blog.zx2c4.com/749
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=e268337dfe26dfc7efd422a804dbb27977a3cccc
- http://secunia.com/advisories/47708
- http://ubuntu.com/usn/usn-1336-1
- http://www.kb.cert.org/vuls/id/470151
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.2
- http://www.openwall.com/lists/oss-security/2012/01/18/1
- http://www.openwall.com/lists/oss-security/2012/01/18/2
- http://www.openwall.com/lists/oss-security/2012/01/19/4
- http://www.openwall.com/lists/oss-security/2012/01/22/4
- http://www.redhat.com/support/errata/RHSA-2012-0052.html
- http://www.redhat.com/support/errata/RHSA-2012-0061.html
- http://www.securityfocus.com/bid/51625
- https://bugzilla.redhat.com/show_bug.cgi?id=782642
- http://blog.zx2c4.com/749
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=e268337dfe26dfc7efd422a804dbb27977a3cccc
- http://secunia.com/advisories/47708
- http://ubuntu.com/usn/usn-1336-1
- http://www.kb.cert.org/vuls/id/470151
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.2
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