CVE-2011-4080
linux linux kernel: no CVSS score yet. EPSS 0.3% chance of exploitation in the next 30 days.
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.
- EPSS
- 0.3% chance of exploitation in the next 30 days; higher than 28% of CVEs (scores of 2026-10-31)
- CWE
- CWE-264
- Published
- Modified
- Record from
- the NVD, synced
Affected
- linux:linux_kernel
References
- 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
- http://www.openwall.com/lists/oss-security/2011/10/26/10
- https://github.com/torvalds/linux/commit/bfdc0b497faa82a0ba2f9dddcf109231dd519fcc
- http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39