Information disclosure in Linux kernel - CVE-2011-2909
Published: February 15, 2014 / Updated: August 10, 2020
Vulnerability identifier: #VU42029
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2011-2909
CWE-ID: CWE-200
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a remote non-authenticated attacker to gain access to sensitive information.
The do_devinfo_ioctl function in drivers/staging/comedi/comedi_fops.c in the Linux kernel before 3.1 allows local users to obtain sensitive information from kernel memory via a copy of a short string.
How to mitigate CVE-2011-2909
Install update from vendor's website.
Sources
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=819cbb120eaec7e014e5abd029260db1ca8c5735
- http://www.openwall.com/lists/oss-security/2011/08/12/1
- https://github.com/torvalds/linux/commit/819cbb120eaec7e014e5abd029260db1ca8c5735
- https://www.kernel.org/pub/linux/kernel/v3.x/patch-3.1.bz2