cve-2011-4080
Vulnerability from cvelistv5
Published
2012-05-24 23:00
Modified
2024-08-06 23:53
Severity ?
Summary
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
secalert@redhat.comhttp://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39Broken Link
secalert@redhat.comhttp://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=bfdc0b497faa82a0ba2f9dddcf109231dd519fcc
secalert@redhat.comhttp://www.openwall.com/lists/oss-security/2011/10/26/10Mailing List, Third Party Advisory
secalert@redhat.comhttps://github.com/torvalds/linux/commit/bfdc0b497faa82a0ba2f9dddcf109231dd519fccPatch, Third Party Advisory
Impacted products
n/an/a
Show details on NVD website

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