Description
arch/x86/kernel/entry_64.S in the Linux kernel before 3.19.2 does not prevent the TS_COMPAT flag from reaching a user-mode task, which might allow local users to bypass the seccomp or audit protection mechanism via a crafted application that uses the (1) fork or (2) close system call, as demonstrated by an attack against seccomp before 3.16.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
n/a n/a
n/aaffected
References
- http://www.ubuntu.com/usn/USN-2631-1 ↗
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.19.2 ↗
- http://www.ubuntu.com/usn/USN-2632-1 ↗
- http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html ↗
- http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00021.html ↗
- http://www.securitytracker.com/id/1032413 ↗
- http://www.debian.org/security/2015/dsa-3237 ↗
- http://rhn.redhat.com/errata/RHSA-2015-1138.html ↗
- https://github.com/torvalds/linux/commit/956421fbb74c3a6261903f3836c0740187cf038b ↗
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=956421fbb74c3a6261903f3836c0740187cf038b ↗
- http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00004.html ↗
- https://bugzilla.redhat.com/show_bug.cgi?id=1208598 ↗
- http://rhn.redhat.com/errata/RHSA-2015-1137.html ↗
- http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00018.html ↗
- http://rhn.redhat.com/errata/RHSA-2015-1221.html ↗
- http://www.openwall.com/lists/oss-security/2015/04/02/1 ↗