Information exposure in Linux kernel - CVE-2011-4915
Published: February 20, 2020 / Updated: February 25, 2020
Vulnerability identifier: #VU92425
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2011-4915
CWE-ID: CWE-200
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a local user to gain access to sensitive information.
The vulnerability exists due to information exposure error within the proc_set_super() and proc_parse_options() functions in fs/proc/root.c, within the proc_init_inodecache() function in fs/proc/inode.c, within the proc_setattr(), pid_getattr(), proc_flush_task_mnt(), proc_pid_fill_cache() and proc_pid_readdir() functions in fs/proc/base.c. A local user can gain access to sensitive information.
How to mitigate CVE-2011-4915
Install update from vendor's repository.
Sources
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0499680a42141d86417a8fbaa8c8db806bea1201
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=a2ef990ab5a6705a356d146dd773a3b359787497
- http://people.canonical.com/~ubuntu-security/cve/2011/CVE-2011-4915.html
- http://www.openwall.com/lists/oss-security/2011/11/07/9
- https://lkml.org/lkml/2011/11/7/340
- https://seclists.org/oss-sec/2011/q4/571
- https://security-tracker.debian.org/tracker/CVE-2011-4915
- https://vigilance.fr/vulnerability/Linux-kernel-information-disclosure-about-keyboard-11131