High severity · published Apr 27, 2016
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…
7.8
CVSS
1.2%
EPSS
No
On KEV
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 vector
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.2% · higher than 67% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
Kernel · Linux
through 4.5.2 · source: NVD
SL
Suse Linux Enterprise Desktop · Novell
12.0 · source: NVD
SL
Suse Linux Enterprise Live Patching · Novell
12.0 · source: NVD
SL
Suse Linux Enterprise Module For Public Cloud · Novell
12.0 · source: NVD
SL
Suse Linux Enterprise Real Time Extension · Novell
12.0 · source: NVD
SL
Suse Linux Enterprise Server · Novell
12.0 · source: NVD
SL
Suse Linux Enterprise Software Development Kit · Novell
12.0 · source: NVD
SL
Suse Linux Enterprise Workstation Extension · Novell
12.0 · source: NVD
UL
Ubuntu Linux · Canonical
12.04; 14.04; 15.10 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2016-3672
CVE.org
https://www.cve.org/CVERecord?id=CVE-2016-3672
git.kernel.org
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8b8addf891de8a00e4d39fc32f93f7c5eb8feceb
hmarco.org
http://hmarco.org/bugs/CVE-2016-3672-Unlimiting-the-stack-not-longer-dis
hmarco.org
http://hmarco.org/bugs/CVE-2016-3672-Unlimiting-the-stack-not-longer-disables-ASLR.html
lists.fedoraproject.org
http://lists.fedoraproject.org/pipermail/package-announce/2016-April/182524.html
lists.opensuse.org
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00044.html
Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00054.html
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