CVE-2011-4080

The sysrq_sysctl_handler function in kernel/sysctl.c in the Linux kernel before 2.6.39 does not require the CAP_SYS_ADMIN capability to modify the…

published May 24, 2012

CVSS
—
EPSS
0%
Percentile
27.1
In the wild
Unconfirmed
What it is

The sysrq_sysctl_handler function in kernel/sysctl.c in the Linux kernel before 2.6.39 does not require the CAP_SYS_ADMIN capability to modify the dmesg_restrict value, which allows local users to bypass intended access restrictions and read the kernel ring buffer by leveraging root privileges, as demonstrated by a root user in a Linux Containers (aka LXC) environment.

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.00349 · 27.1th percentile
Published
2012-05-24T23:00Z
EPSS history
Timeline
  • 24 MAY 23:00Z
    The sysrq_sysctl_handler function in kernel/sysctl.c in the Linux kernel before 2.6.39 does not require the CAP_SYS_ADMIN capability to modify the…
    cvelistv5