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