Vulnerability in Linux Kernel
CVE-2016-3672
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.012 (66.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 67th percentile — 66.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: 0.000
Affected products
- Linux Kernel
- Novell SUSE Linux Enterprise Desktop — versions 12.0
- Novell SUSE Linux Enterprise Live Patching — versions 12.0
- Novell SUSE Linux Enterprise Module For Public Cloud — versions 12.0
- Novell SUSE Linux Enterprise Real Time Extension — versions 12.0
- Novell SUSE Linux Enterprise Server — versions 12.0
- Novell SUSE Linux Enterprise Software Development Kit — versions 12.0
- Novell SUSE Linux Enterprise Workstation Extension — versions 12.0
- Canonical Ubuntu Linux — versions 12.04, 14.04, 15.10
Weakness classification (CWE)
Public proof-of-concept exploits
References
- lists.opensuse.org/opensuse-security-announce/2016-06/msg00054.html (vendor-advisory, Third Party Advisory)
- www.ubuntu.com/usn/USN-3004-1 (vendor-advisory, Third Party Advisory)
- www.ubuntu.com/usn/USN-3001-1 (vendor-advisory, Third Party Advisory)
- www.securityfocus.com/archive/1/537996/100/0/threaded (mailing-list)
- hmarco.org/bugs/CVE-2016-3672-Unlimiting-the-stack-not-longer-disables-ASLR.html
- seclists.org/fulldisclosure/2016/Apr/26 (mailing-list)
- lists.opensuse.org/opensuse-security-announce/2016-08/msg00055.html (vendor-advisory)
- git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/
- www.securityfocus.com/bid/85884 (vdb-entry)
- access.redhat.com/errata/RHSA-2018:1062 (vendor-advisory)
Frequently asked questions
- What is CVE-2016-3672?
- CVE-2016-3672 is a high-severity vulnerability in Linux Kernel, classified under CWE-254. CVSS score: 7.8/10. Published 2016-04-27.
- How severe is CVE-2016-3672?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2016-3672 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.