7.8high

CVE-2016-36721 exploit

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 addr…

Published 10 y ago · modified 4 mo ago · JSON

CVSS
7.8
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
1.2%
percentile 68%
Public exploits
1
Exploit-DB

Summary

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.

Exploit prediction (EPSS)

1.18% probability of exploitation in the next 30 days, higher than 68% of all scored CVEs.

Exploits and detections

  • EDB-39669 Linux Kernel (x86) - Disable ASLR by Setting the RLIMIT_STACK Resource to Unlimited · dos · 2016-04-06

CVSS scores

Assigned byVersionScoreVector
NVD3.07.8CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD2.04.6AV:L/AC:L/Au:N/C:P/I:P/A:P

Classification

Weakness
Technology feeds
Linux kernel (RSS, critical only)

References

  • lists.opensuse.org /opensuse-security-announce/2016-06/msg00054.html · vendor-advisory, x_refsource_SUSE, x_transferred
  • ubuntu.com /usn/USN-3004-1 · vendor-advisory, x_refsource_UBUNTU, x_transferred
  • ubuntu.com /usn/USN-3001-1 · vendor-advisory, x_refsource_UBUNTU, x_transferred
  • securityfocus.com /archive/1/537996/100/0/threaded · mailing-list, x_refsource_BUGTRAQ, x_transferred
  • hmarco.org /bugs/CVE-2016-3672-Unlimiting-the-stack-not-longer-disables-ASLR.html · x_refsource_MISC, x_transferred
  • seclists.org /fulldisclosure/2016/Apr/26 · mailing-list, x_refsource_FULLDISC, x_transferred
  • lists.opensuse.org /opensuse-security-announce/2016-08/msg00055.html · vendor-advisory, x_refsource_SUSE, x_transferred
  • git.kernel.org /cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8b8addf891de8a00e4d39fc32f93f7c5eb8fe · x_refsource_CONFIRM, x_transferred
  • securityfocus.com /bid/85884 · vdb-entry, x_refsource_BID, x_transferred
  • access.redhat.com /errata/RHSA-2018:1062 · vendor-advisory, x_refsource_REDHAT, x_transferred
  • lists.opensuse.org /opensuse-security-announce/2016-06/msg00044.html · vendor-advisory, x_refsource_SUSE, x_transferred
  • ubuntu.com /usn/USN-2997-1 · vendor-advisory, x_refsource_UBUNTU, x_transferred
  • ubuntu.com /usn/USN-3000-1 · vendor-advisory, x_refsource_UBUNTU, x_transferred
  • github.com /torvalds/linux/commit/8b8addf891de8a00e4d39fc32f93f7c5eb8feceb · x_refsource_CONFIRM, x_transferred
  • hmarco.org /bugs/CVE-2016-3672-Unlimiting-the-stack-not-longer-dis · x_refsource_MISC, x_transferred
  • debian.org /security/2016/dsa-3607 · vendor-advisory, x_refsource_DEBIAN, x_transferred
  • ubuntu.com /usn/USN-3002-1 · vendor-advisory, x_refsource_UBUNTU, x_transferred
  • ubuntu.com /usn/USN-2996-1 · vendor-advisory, x_refsource_UBUNTU, x_transferred
  • lists.fedoraproject.org /pipermail/package-announce/2016-April/182524.html · vendor-advisory, x_refsource_FEDORA, x_transferred
  • access.redhat.com /errata/RHSA-2018:0676 · vendor-advisory, x_refsource_REDHAT, x_transferred
  • exploit-db.com /exploits/39669/ · exploit, x_refsource_EXPLOIT-DB, x_transferred
  • ubuntu.com /usn/USN-2989-1 · vendor-advisory, x_refsource_UBUNTU, x_transferred
  • bugzilla.redhat.com /show_bug.cgi?id=1324749 · x_refsource_CONFIRM, x_transferred
  • securitytracker.com /id/1035506 · vdb-entry, x_refsource_SECTRACK, x_transferred
  • ubuntu.com /usn/USN-3003-1 · vendor-advisory, x_refsource_UBUNTU, x_transferred
  • lists.opensuse.org /opensuse-security-announce/2016-08/msg00044.html · vendor-advisory, x_refsource_SUSE, x_transferred
  • ubuntu.com /usn/USN-2998-1 · vendor-advisory, x_refsource_UBUNTU, x_transferred
  • lists.opensuse.org /opensuse-security-announce/2016-08/msg00000.html · vendor-advisory, x_refsource_SUSE, x_transferred

Sources

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.