Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Canonical | Ubuntu Linux | 12.04 |
| Novell | Suse Linux Enterprise Software Development Kit | 12.0 |
| Novell | Suse Linux Enterprise Desktop | 12.0 |
| Novell | Suse Linux Enterprise Live Patching | 12.0 |
| Novell | Suse Linux Enterprise Module For Public Cloud | 12.0 |
| Novell | Suse Linux Enterprise Real Time Extension | 12.0 |
| Novell | Suse Linux Enterprise Server | 12.0 |
| Novell | Suse Linux Enterprise Workstation Extension | 12.0 |
| Linux | Linux Kernel | <= 4.5.2 |
Related Weaknesses (CWE)
References
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8b8add
- http://hmarco.org/bugs/CVE-2016-3672-Unlimiting-the-stack-not-longer-dis
- http://hmarco.org/bugs/CVE-2016-3672-Unlimiting-the-stack-not-longer-disables-AS
- http://lists.fedoraproject.org/pipermail/package-announce/2016-April/182524.html
- http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00044.html
- http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00054.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00000.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00044.html
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00055.html
- http://seclists.org/fulldisclosure/2016/Apr/26
- http://www.debian.org/security/2016/dsa-3607
- http://www.securityfocus.com/archive/1/537996/100/0/threaded
- http://www.securityfocus.com/bid/85884
- http://www.securitytracker.com/id/1035506
- http://www.ubuntu.com/usn/USN-2989-1Third Party Advisory
FAQ
What is CVE-2016-3672?
CVE-2016-3672 is a vulnerability with a CVSS score of 7.8 (HIGH). 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 inte...
How severe is CVE-2016-3672?
CVE-2016-3672 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2016-3672?
Check the references section above for vendor advisories and patch information. Affected products include: Canonical Ubuntu Linux, Novell Suse Linux Enterprise Software Development Kit, Novell Suse Linux Enterprise Desktop, Novell Suse Linux Enterprise Live Patching, Novell Suse Linux Enterprise Module For Public Cloud.