CVE-2013-1858 | BDVDB-2026-55284 Detail
Description#
The clone system-call implementation in the Linux kernel before 3.8.3 does not properly handle a combination of the CLONE_NEWUSER and CLONE_FS flags, which allows local users to gain privileges by calling chroot and leveraging the sharing of the / directory between a parent process and a child process.
Impact#
No impact statement in the source data.
Weaknesses#
No weakness recorded in the source data.
References#
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=e66eded8309ebf679d3d3c1f5820d1f2ca332c71
- http://www.openwall.com/lists/oss-security/2013/03/14/6
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.8.3
- http://stealth.openwall.net/xSports/clown-newuser.c
- https://github.com/torvalds/linux/commit/e66eded8309ebf679d3d3c1f5820d1f2ca332c71
- https://bugzilla.redhat.com/show_bug.cgi?id=921448
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.
- Version 2Most recent update recorded in the CVE List.