CVE-2015-2830

Published: May 27, 2015Last modified: April 24, 2024

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.

Status

References

• 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
• http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00018.html
• http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00021.html
• http://rhn.redhat.com/errata/RHSA-2015-1137.html
• http://rhn.redhat.com/errata/RHSA-2015-1138.html
• http://rhn.redhat.com/errata/RHSA-2015-1221.html
• http://www.debian.org/security/2015/dsa-3237
• http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.19.2
• http://www.openwall.com/lists/oss-security/2015/04/02/1
• http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html
• http://www.securitytracker.com/id/1032413
• http://www.ubuntu.com/usn/USN-2631-1
• http://www.ubuntu.com/usn/USN-2632-1
• https://bugzilla.redhat.com/show_bug.cgi?id=1208598
• https://github.com/torvalds/linux/commit/956421fbb74c3a6261903f3836c0740187cf038b