CVE-2014-9322 Information

Description

arch/x86/kernel/entry_64.S in the Linux kernel before 3.17.5 does not properly handle faults associated with the Stack Segment (SS) segment register which allows local users to gain privileges by triggering an IRET instruction that leads to access to a GS Base address from the wrong space.

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Reference

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=6f442be2fb22be02cafa606f1769fa1e6f894441 http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00025.html http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00015.html http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00020.html http://marc.info/?l=bugtraq&m=142722450701342&w=2 http://marc.info/?l=bugtraq&m=142722544401658&w=2 http://osvdb.org/show/osvdb/115919 http://rhn.redhat.com/errata/RHSA-2014-1998.html http://rhn.redhat.com/errata/RHSA-2014-2008.html http://rhn.redhat.com/errata/RHSA-2014-2028.html http://rhn.redhat.com/errata/RHSA-2014-2031.html http://rhn.redhat.com/errata/RHSA-2015-0009.html http://secunia.com/advisories/62336 http://source.android.com/security/bulletin/2016-04-02.html http://www.exploit-db.com/exploits/36266 http://www.openwall.com/lists/oss-security/2014/12/15/6 http://www.ubuntu.com/usn/USN-2491-1 http://www.zerodayinitiative.com/advisories/ZDI-16-170 https://bugzilla.redhat.com/show_bug.cgi?id=1172806 https://github.com/torvalds/linux/commit/6f442be2fb22be02cafa606f1769fa1e6f894441 https://help.joyent.com/entries/98788667-Security-Advisory-ZDI-CAN-3263-ZDI-CAN-3284-and-ZDI-CAN-3364-Vulnerabilities https://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.17.5

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

7.8