{"containers":{"cna":{"affected":[{"product":"n/a","vendor":"n/a","versions":[{"status":"affected","version":"n/a"}]}],"descriptions":[{"lang":"en","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."}],"problemTypes":[{"descriptions":[{"description":"n/a","lang":"en","type":"text"}]}],"providerMetadata":{"orgId":"53f830b8-0a3f-465b-8143-3b8a9948e749","shortName":"redhat","dateUpdated":"2012-05-24T23:00:00.000Z"},"references":[{"tags":["x_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","tags":["mailing-list","x_refsource_MLIST"],"url":"http://www.openwall.com/lists/oss-security/2011/10/26/10"},{"tags":["x_refsource_CONFIRM"],"url":"http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39"},{"tags":["x_refsource_CONFIRM"],"url":"http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=bfdc0b497faa82a0ba2f9dddcf109231dd519fcc"}]},"adp":[{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-06T23:53:32.920Z"},"title":"CVE Program Container","references":[{"tags":["x_refsource_CONFIRM","x_transferred"],"url":"https://github.com/torvalds/linux/commit/bfdc0b497faa82a0ba2f9dddcf109231dd519fcc"},{"name":"[oss-security] 20111026 Re: CVE Request -- kernel: sysctl: restrict write access to dmesg_restrict","tags":["mailing-list","x_refsource_MLIST","x_transferred"],"url":"http://www.openwall.com/lists/oss-security/2011/10/26/10"},{"tags":["x_refsource_CONFIRM","x_transferred"],"url":"http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39"},{"tags":["x_refsource_CONFIRM","x_transferred"],"url":"http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=bfdc0b497faa82a0ba2f9dddcf109231dd519fcc"}]}]},"cveMetadata":{"assignerOrgId":"53f830b8-0a3f-465b-8143-3b8a9948e749","assignerShortName":"redhat","cveId":"CVE-2011-4080","state":"PUBLISHED","dateReserved":"2011-10-18T00:00:00.000Z","datePublished":"2012-05-24T23:00:00.000Z","dateUpdated":"2024-08-06T23:53:32.920Z"},"dataType":"CVE_RECORD","dataVersion":"5.1"}