PRIOn knowledge basePRION:CVE-2012-0056Input validation
6.9 Medium
AI Score
Confidence
Low
6.9 Medium
CVSS2
Access Vector
LOCAL
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:M/Au:N/C:C/I:C/A:C
0.001 Low
EPSS
Percentile
45.7%
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.
| CPE | Name | Operator | Version |
|---|---|---|---|
| linux_kernel | ge | 3.1 | |
| linux_kernel | lt | 3.2.2 | |
| linux_kernel | ge | 2.6.39 | |
| linux_kernel | lt | 3.0.18 |
References
blog.zx2c4.com/749
git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=e268337dfe26dfc7efd422a804dbb27977a3cccc
secunia.com/advisories/47708
ubuntu.com/usn/usn-1336-1
www.kb.cert.org/vuls/id/470151
www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.2
www.openwall.com/lists/oss-security/2012/01/18/1
www.openwall.com/lists/oss-security/2012/01/18/2
www.openwall.com/lists/oss-security/2012/01/19/4
www.openwall.com/lists/oss-security/2012/01/22/4
www.redhat.com/support/errata/RHSA-2012-0052.html
www.redhat.com/support/errata/RHSA-2012-0061.html
www.securityfocus.com/bid/51625
bugzilla.redhat.com/show_bug.cgi?id=782642
Related
6.9 Medium
AI Score
Confidence
Low
6.9 Medium
CVSS2
Access Vector
LOCAL
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:M/Au:N/C:C/I:C/A:C
0.001 Low
EPSS
Percentile
45.7%