CVE-2016-1583
Vulnerability Summary
Timeline
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 Metrics
- v3.1•HIGH•Score: 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- v2.0•HIGH•Score: 7.2AV:L/AC:L/Au:N/C:C/I:C/A:C
EPSS Trends
Current EPSS score: 0.42%• Percentile: 62%
Techniques & Countermeasures
- CWE-119•Improper Restriction of Operations within the Bounds of a Memory Buffer
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
Affected Systems
- canonical•ubuntu_linux
12.04 | 14.04 | 15.10 | 16.04
- debian•debian_linux
8.0
- linux•linux_kernel
≥ 2.6.19, < 3.18.54 | ≥ 3.19, < 4.4.14 | ≥ 4.5, < 4.6.3
- novell•suse_linux_enterprise_debuginfo
11.0:sp4
- novell•suse_linux_enterprise_desktop
12.0 | 12.0:sp1
- novell•suse_linux_enterprise_live_patching
12.0
- novell•suse_linux_enterprise_module_for_public_cloud
12
- novell•suse_linux_enterprise_server
11.0:extra | 11.0:sp4 | 12.0 | 12.0:sp1
- novell•suse_linux_enterprise_software_development_kit
11.0:sp4 | 12.0 | 12.0:sp1
- novell•suse_linux_enterprise_workstation_extension
12.0 | 12.0:sp1
References (50)
- http://www.ubuntu.com/usn/USN-3006-1
- http://www.ubuntu.com/usn/USN-3004-1
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00022.html
- https://github.com/torvalds/linux/commit/f5364c150aa645b3d7daa21b5c0b9feaa1c9cd6d
- http://rhn.redhat.com/errata/RHSA-2016-2766.html
- http://www.ubuntu.com/usn/USN-3001-1
- https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.6.3
- http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00056.html
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f5364c150aa645b3d7daa21b5c0b9feaa1c9cd6d
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00008.html
- https://www.exploit-db.com/exploits/39992/
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00003.html
- http://www.ubuntu.com/usn/USN-3005-1
- https://bugs.chromium.org/p/project-zero/issues/detail?id=836
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00007.html
- http://www.securityfocus.com/bid/91157
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00055.html
- http://www.ubuntu.com/usn/USN-2999-1
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2f36db71009304b3f0b95afacd8eba1f9f046b87
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00019.html
- http://www.openwall.com/lists/oss-security/2016/06/10/8
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00026.html
- http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00044.html
- http://www.ubuntu.com/usn/USN-2997-1
- http://www.ubuntu.com/usn/USN-3000-1
- https://github.com/torvalds/linux/commit/f0fe970df3838c202ef6c07a4c2b36838ef0a88b
- http://www.debian.org/security/2016/dsa-3607
- http://www.securitytracker.com/id/1036763
- https://github.com/torvalds/linux/commit/2f36db71009304b3f0b95afacd8eba1f9f046b87
- http://www.ubuntu.com/usn/USN-3002-1
- http://www.ubuntu.com/usn/USN-2996-1
- http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00052.html
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00021.html
- http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00027.html
- https://access.redhat.com/errata/RHSA-2017:2760
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00018.html
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00020.html
- http://www.ubuntu.com/usn/USN-3007-1
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00014.html
- http://rhn.redhat.com/errata/RHSA-2016-2124.html
- http://www.ubuntu.com/usn/USN-3003-1
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00009.html
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00044.html
- http://www.openwall.com/lists/oss-security/2016/06/22/1
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00016.html
- https://bugzilla.redhat.com/show_bug.cgi?id=1344721
- http://www.ubuntu.com/usn/USN-2998-1
- http://packetstormsecurity.com/files/137560/Linux-ecryptfs-Stack-Overflow.html
- http://www.ubuntu.com/usn/USN-3008-1
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00000.html