CVE - CVE-2011-4080

CVE-ID
CVE-2011-4080	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
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.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MLIST:[oss-security] 20111026 Re: CVE Request -- kernel: sysctl: restrict write access to dmesg_restrict URL:http://www.openwall.com/lists/oss-security/2011/10/26/10 CONFIRM:http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39 CONFIRM:http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=bfdc0b497faa82a0ba2f9dddcf109231dd519fcc CONFIRM:https://github.com/torvalds/linux/commit/bfdc0b497faa82a0ba2f9dddcf109231dd519fcc
Assigning CNA
N/A
Date Entry Created
20111018	Disclaimer: The entry creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20111018)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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