CVE-2016-1583
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.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
Exploits
Public proof-of-concept code below. AS-IS, for defenders and authorised testing only.
Exploit-DB
Linux Kernel - 'ecryptfs' '/proc/$pid/environ' Local Privilege Escalation
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| sles | affected | | |
| debian | bookworm | fixed | 4.6.2-1 |
| debian | bullseye | fixed | 4.6.2-1 |
| debian | forky | fixed | 4.6.2-1 |
| debian | sid | fixed | 4.6.2-1 |
| debian | trixie | fixed | 4.6.2-1 |
| linux-kernel | affected | 3.18.54 | |
| suse | 11.0 | affected | |
| suse | 12.0 | affected | |
| ubuntu | 12.04 | affected | |
| ubuntu | 14.04 | affected | |
| ubuntu | 15.10 | affected | |
| ubuntu | 16.04 | affected | |
| debian | 8.0 | affected | |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| novell | suse_linux_enterprise_software_development_kit | 11.0 | |
| novell | suse_linux_enterprise_software_development_kit | 12.0 | |
References
- https://www.suse.com/security/cve/CVE-2016-1583.html
- 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
CWEs
CWE-119
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.