CVE-2011-4080

Advisory lineage Upstream: 0 Downstream: 1
Downstream
RHSA-2012:0481
Modified
Published: 24 May 2012, 23:00
Last modified:06 Aug 2024, 23:53

Vulnerability Summary

Overall Risk (default)
low
16/100
CVSS Score
4 MEDIUM
v2.0 (nvd)
EPSS Score
0.07% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

24 May 2012, 23:00
Published
Vulnerability first disclosed
06 Aug 2024, 23:53
Last Modified
Vulnerability information updated

Description

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.

CVSS Metrics

  • v2.0•MEDIUM•Score: 4AV:L/AC:H/Au:N/C:C/I:N/A:N

EPSS Trends

Current EPSS score: 0.07%• Percentile: 22%

Techniques & Countermeasures

  • CWE-264•Permissions, Privileges, and Access Controls

    Weaknesses in this category are related to the management of permissions, privileges, and other security features that are used to perform access control.

Affected Systems

  • linux•linux_kernel

    < 2.6.39

References (4)