CVE-2016-3672

Public Exploit

Description

The arch_pick_mmap_layout function in arch/x86/mm/mmap.c in the Linux kernel through 4.5.2 does not properly randomize the legacy base address, which makes it easier for local users to defeat the intended restrictions on the ADDR_NO_RANDOMIZE flag, and bypass the ASLR protection mechanism for a setuid or setgid program, by disabling stack-consumption resource limits.

Category

7.8
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.02%
Vendor Advisory opensuse.org Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory opensuse.org Vendor Advisory redhat.com Vendor Advisory opensuse.org Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory debian.org Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory fedoraproject.org Vendor Advisory redhat.com Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory opensuse.org Vendor Advisory ubuntu.com Vendor Advisory opensuse.org Vendor Advisory github.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00054.html third party advisory vendor advisory
http://www.ubuntu.com/usn/USN-3004-1 third party advisory vendor advisory
http://www.ubuntu.com/usn/USN-3001-1 third party advisory vendor advisory
http://www.securityfocus.com/archive/1/537996/100/0/threaded mailing list
http://hmarco.org/bugs/CVE-2016-3672-Unlimiting-the-stack-not-longer-disables-ASLR.html
http://seclists.org/fulldisclosure/2016/Apr/26 mailing list
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00055.html vendor advisory
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8b8addf891de8a00e4d39fc32f93f7c5eb8feceb
http://www.securityfocus.com/bid/85884 vdb entry
https://access.redhat.com/errata/RHSA-2018:1062 vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00044.html vendor advisory
http://www.ubuntu.com/usn/USN-2997-1 third party advisory vendor advisory
http://www.ubuntu.com/usn/USN-3000-1 third party advisory vendor advisory
https://github.com/torvalds/linux/commit/8b8addf891de8a00e4d39fc32f93f7c5eb8feceb patch vendor advisory
http://hmarco.org/bugs/CVE-2016-3672-Unlimiting-the-stack-not-longer-dis
http://www.debian.org/security/2016/dsa-3607 vendor advisory
http://www.ubuntu.com/usn/USN-3002-1 third party advisory vendor advisory
http://www.ubuntu.com/usn/USN-2996-1 third party advisory vendor advisory
http://lists.fedoraproject.org/pipermail/package-announce/2016-April/182524.html vendor advisory
https://access.redhat.com/errata/RHSA-2018:0676 vendor advisory
https://www.exploit-db.com/exploits/39669/ exploit
http://www.ubuntu.com/usn/USN-2989-1 third party advisory vendor advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1324749 issue tracking
http://www.securitytracker.com/id/1035506 vdb entry
http://www.ubuntu.com/usn/USN-3003-1 third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00044.html vendor advisory
http://www.ubuntu.com/usn/USN-2998-1 third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00000.html third party advisory vendor advisory

Frequently Asked Questions

What is the severity of CVE-2016-3672?
CVE-2016-3672 has been scored as a high severity vulnerability.
How to fix CVE-2016-3672?
To fix CVE-2016-3672, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2016-3672 being actively exploited in the wild?
It is possible that CVE-2016-3672 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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