{"id":"CVE-2011-4080","state":"PUBLISHED","title":"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 allow","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.","publishedAt":"2012-05-24T23:00:00.000Z","updatedAt":"2024-08-06T23:53:32.920Z","severity":null,"assigner":"redhat","products":["n/a n/a"],"affected":[{"vendor":"n/a","product":"n/a","versions":[{"version":"n/a","status":"affected"}]}],"references":["https://github.com/torvalds/linux/commit/bfdc0b497faa82a0ba2f9dddcf109231dd519fcc","http://www.openwall.com/lists/oss-security/2011/10/26/10","http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39","http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=bfdc0b497faa82a0ba2f9dddcf109231dd519fcc"],"weaknesses":[],"ingestedAt":"2026-10-29T19:40:05.264Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2011/4xxx/CVE-2011-4080.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2011-4080","state":"PUBLISHED","datePublished":"2012-05-24T23:00:00.000Z","dateUpdated":"2024-08-06T23:53:32.920Z","assignerShortName":"redhat","assignerOrgId":"53f830b8-0a3f-465b-8143-3b8a9948e749","dateReserved":"2011-10-18T00:00:00.000Z"},"containers":{"cna":{"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."}],"affected":[{"vendor":"n/a","product":"n/a","versions":[{"version":"n/a","status":"affected"}]}],"references":[{"url":"https://github.com/torvalds/linux/commit/bfdc0b497faa82a0ba2f9dddcf109231dd519fcc","tags":["x_refsource_CONFIRM"]},{"url":"http://www.openwall.com/lists/oss-security/2011/10/26/10","name":"[oss-security] 20111026 Re: CVE Request -- kernel: sysctl: restrict write access to dmesg_restrict","tags":["mailing-list","x_refsource_MLIST"]},{"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","tags":["x_refsource_CONFIRM"]}],"problemTypes":[{"descriptions":[{"description":"n/a","lang":"en","type":"text"}]}],"providerMetadata":{"shortName":"redhat","orgId":"53f830b8-0a3f-465b-8143-3b8a9948e749","dateUpdated":"2012-05-24T23:00:00.000Z"}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://github.com/torvalds/linux/commit/bfdc0b497faa82a0ba2f9dddcf109231dd519fcc","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"http://www.openwall.com/lists/oss-security/2011/10/26/10","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://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","tags":["x_refsource_CONFIRM","x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-06T23:53:32.920Z"}}]}}}