Description

kernel/trace/trace_syscalls.c in the Linux kernel through 3.17.2 does not properly handle private syscall numbers during use of the ftrace subsystem, which allows local users to gain privileges or cause a denial of service (invalid pointer dereference) via a crafted application.

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=086ba77a6db00ed858ff07451bedee197df868c9

http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00010.html

http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00025.html

http://rhn.redhat.com/errata/RHSA-2014-1943.html

http://rhn.redhat.com/errata/RHSA-2015-0290.html

http://rhn.redhat.com/errata/RHSA-2015-0864.html

http://www.openwall.com/lists/oss-security/2014/11/06/11

http://www.securityfocus.com/bid/70971

https://bugzilla.redhat.com/show_bug.cgi?id=1161565

https://exchange.xforce.ibmcloud.com/vulnerabilities/98556

https://github.com/torvalds/linux/commit/086ba77a6db00ed858ff07451bedee197df868c9

Details

Risk Information

CVSS v2

CVSS v3