{ "CVE_data_meta": { "ASSIGNER": "secalert@redhat.com", "ID": "CVE-2011-4080", "STATE": "PUBLIC" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "n/a", "version": { "version_data": [ { "version_value": "n/a" } ] } } ] }, "vendor_name": "n/a" } ] } }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", "value": "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." } ] }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "n/a" } ] } ] }, "references": { "reference_data": [ { "name": "https://github.com/torvalds/linux/commit/bfdc0b497faa82a0ba2f9dddcf109231dd519fcc", "refsource": "CONFIRM", "url": "https://github.com/torvalds/linux/commit/bfdc0b497faa82a0ba2f9dddcf109231dd519fcc" }, { "name": "[oss-security] 20111026 Re: CVE Request -- kernel: sysctl: restrict write access to dmesg_restrict", "refsource": "MLIST", "url": "http://www.openwall.com/lists/oss-security/2011/10/26/10" }, { "name": "http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39", "refsource": "CONFIRM", "url": "http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39" }, { "name": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=bfdc0b497faa82a0ba2f9dddcf109231dd519fcc", "refsource": "CONFIRM", "url": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=bfdc0b497faa82a0ba2f9dddcf109231dd519fcc" } ] } }