CVE-2016-1583 Information

Description

The ecryptfs_privileged_open function in fs/ecryptfs/kthread.c in the Linux kernel before 4.6.3 allows local users to gain privileges or cause a denial of service (stack memory consumption) via vectors involving crafted mmap calls for /proc pathnames leading to recursive pagefault handling.

CVSS Vector

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Reference

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2f36db71009304b3f0b95afacd8eba1f9f046b87 http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f5364c150aa645b3d7daa21b5c0b9feaa1c9cd6d http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00027.html http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00044.html http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00052.html http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00056.html http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00000.html http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00003.html http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00007.html http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00008.html http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00009.html http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00014.html http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00016.html http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00018.html http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00019.html http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00020.html http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00021.html http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00022.html http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00026.html http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00044.html http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00055.html http://packetstormsecurity.com/files/137560/Linux-ecryptfs-Stack-Overflow.html http://rhn.redhat.com/errata/RHSA-2016-2124.html http://rhn.redhat.com/errata/RHSA-2016-2766.html http://www.debian.org/security/2016/dsa-3607 http://www.openwall.com/lists/oss-security/2016/06/10/8 http://www.openwall.com/lists/oss-security/2016/06/22/1 http://www.securityfocus.com/bid/91157 http://www.securitytracker.com/id/1036763 http://www.ubuntu.com/usn/USN-2996-1 http://www.ubuntu.com/usn/USN-2997-1 http://www.ubuntu.com/usn/USN-2998-1 http://www.ubuntu.com/usn/USN-2999-1 http://www.ubuntu.com/usn/USN-3000-1 http://www.ubuntu.com/usn/USN-3001-1 http://www.ubuntu.com/usn/USN-3002-1 http://www.ubuntu.com/usn/USN-3003-1 http://www.ubuntu.com/usn/USN-3004-1 http://www.ubuntu.com/usn/USN-3005-1 http://www.ubuntu.com/usn/USN-3006-1 http://www.ubuntu.com/usn/USN-3007-1 http://www.ubuntu.com/usn/USN-3008-1 https://access.redhat.com/errata/RHSA-2017:2760 https://bugs.chromium.org/p/project-zero/issues/detail?id=836 https://bugzilla.redhat.com/show_bug.cgi?id=1344721 https://github.com/torvalds/linux/commit/2f36db71009304b3f0b95afacd8eba1f9f046b87 https://github.com/torvalds/linux/commit/f0fe970df3838c202ef6c07a4c2b36838ef0a88b https://github.com/torvalds/linux/commit/f5364c150aa645b3d7daa21b5c0b9feaa1c9cd6d https://www.exploit-db.com/exploits/39992/ https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.6.3

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