CVE-2018-18281
VMware LinuxKernel Mremap Syscall TLB Flush Vulnerability
Description
Since Linux kernel version 3.2, the mremap() syscall performs TLB flushes after dropping pagetable locks. If a syscall such as ftruncate() removes entries from the pagetables of a task that is in the middle of mremap(), a stale TLB entry can remain for a short time that permits access to a physical page after it has been released back to the page allocator and reused. This is fixed in the following kernel versions: 4.9.135, 4.14.78, 4.18.16, 4.19.
INFO
Published Date :
Oct. 30, 2018, 6:29 p.m.
Last Modified :
Aug. 24, 2020, 5:37 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
5.9
Exploitability Score :
1.8
Public PoC/Exploit Available at Github
CVE-2018-18281 has a 4 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
Affected Products
The following products are affected by CVE-2018-18281
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2018-18281.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
None
Map Vulnerabilities into Different Layers of the Container Image
Python
A collection of links related to Linux kernel security and exploitation
linux-kernel kernel-exploitation exploit privilege-escalation security
This project contains pocs and exploits for vulneribilities I found (mostly)
Makefile C Assembly Python Shell HTML CMake Batchfile Meson Roff
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2018-18281 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2018-18281 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CWE Remap by [email protected]
Aug. 24, 2020
Action Type Old Value New Value Changed CWE CWE-20 CWE-459 -
CVE Modified by [email protected]
Jan. 21, 2020
Action Type Old Value New Value Added Reference https://access.redhat.com/errata/RHSA-2020:0179 [No Types Assigned] -
CVE Modified by [email protected]
Jan. 14, 2020
Action Type Old Value New Value Added Reference https://access.redhat.com/errata/RHSA-2020:0103 [No Types Assigned] -
CVE Modified by [email protected]
Jan. 14, 2020
Action Type Old Value New Value Added Reference https://access.redhat.com/errata/RHSA-2020:0100 [No Types Assigned] -
CVE Modified by [email protected]
Jan. 07, 2020
Action Type Old Value New Value Added Reference https://access.redhat.com/errata/RHSA-2020:0036 [No Types Assigned] -
CVE Modified by [email protected]
Aug. 06, 2019
Action Type Old Value New Value Added Reference https://access.redhat.com/errata/RHSA-2019:2043 [No Types Assigned] Added Reference https://access.redhat.com/errata/RHSA-2019:2029 [No Types Assigned] -
CVE Modified by [email protected]
Apr. 23, 2019
Action Type Old Value New Value Added Reference https://access.redhat.com/errata/RHSA-2019:0831 [No Types Assigned] -
Modified Analysis by [email protected]
Apr. 03, 2019
Action Type Old Value New Value Changed Reference Type https://lists.debian.org/debian-lts-announce/2019/03/msg00017.html No Types Assigned https://lists.debian.org/debian-lts-announce/2019/03/msg00017.html Mailing List, Third Party Advisory Changed Reference Type https://lists.debian.org/debian-lts-announce/2019/04/msg00004.html No Types Assigned https://lists.debian.org/debian-lts-announce/2019/04/msg00004.html Mailing List, Third Party Advisory Changed Reference Type https://lists.debian.org/debian-lts-announce/2019/03/msg00034.html No Types Assigned https://lists.debian.org/debian-lts-announce/2019/03/msg00034.html Mailing List, Third Party Advisory Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Apr. 01, 2019
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2019/04/msg00004.html [No Types Assigned] -
CVE Modified by [email protected]
Mar. 27, 2019
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2019/03/msg00034.html [No Types Assigned] -
CVE Modified by [email protected]
Mar. 21, 2019
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2019/03/msg00017.html [No Types Assigned] -
Modified Analysis by [email protected]
Mar. 05, 2019
Action Type Old Value New Value Changed Reference Type https://usn.ubuntu.com/3880-2/ No Types Assigned https://usn.ubuntu.com/3880-2/ Third Party Advisory Changed Reference Type https://usn.ubuntu.com/3880-1/ No Types Assigned https://usn.ubuntu.com/3880-1/ Third Party Advisory Changed Reference Type http://www.securityfocus.com/bid/106503 Third Party Advisory http://www.securityfocus.com/bid/106503 Third Party Advisory, VDB Entry Changed Reference Type https://usn.ubuntu.com/3871-3/ No Types Assigned https://usn.ubuntu.com/3871-3/ Third Party Advisory Changed Reference Type https://usn.ubuntu.com/3871-4/ No Types Assigned https://usn.ubuntu.com/3871-4/ Third Party Advisory Changed Reference Type https://usn.ubuntu.com/3871-5/ No Types Assigned https://usn.ubuntu.com/3871-5/ Third Party Advisory Changed Reference Type https://usn.ubuntu.com/3871-1/ No Types Assigned https://usn.ubuntu.com/3871-1/ Third Party Advisory Changed CPE Configuration OR *cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:* OR *cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Feb. 09, 2019
Action Type Old Value New Value Added Reference https://usn.ubuntu.com/3880-1/ [No Types Assigned] Added Reference https://usn.ubuntu.com/3871-5/ [No Types Assigned] -
CVE Modified by [email protected]
Feb. 05, 2019
Action Type Old Value New Value Added Reference https://usn.ubuntu.com/3880-2/ [No Types Assigned] Added Reference https://usn.ubuntu.com/3871-4/ [No Types Assigned] Added Reference https://usn.ubuntu.com/3871-3/ [No Types Assigned] -
CVE Modified by [email protected]
Jan. 30, 2019
Action Type Old Value New Value Added Reference https://usn.ubuntu.com/3871-1/ [No Types Assigned] -
Initial Analysis by [email protected]
Jan. 30, 2019
Action Type Old Value New Value Added CVSS V2 (AV:L/AC:L/Au:N/C:P/I:P/A:P) Added CVSS V3 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.78 No Types Assigned https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.78 Patch, Vendor Advisory Changed Reference Type http://www.securityfocus.com/bid/105761 No Types Assigned http://www.securityfocus.com/bid/105761 Third Party Advisory, VDB Entry Changed Reference Type https://bugs.chromium.org/p/project-zero/issues/detail?id=1695 No Types Assigned https://bugs.chromium.org/p/project-zero/issues/detail?id=1695 Exploit, Patch, Third Party Advisory Changed Reference Type https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.135 No Types Assigned https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.135 Patch, Vendor Advisory Changed Reference Type https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.16 No Types Assigned https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.16 Patch, Vendor Advisory Changed Reference Type http://www.securityfocus.com/bid/106503 No Types Assigned http://www.securityfocus.com/bid/106503 Third Party Advisory Changed Reference Type https://usn.ubuntu.com/3835-1/ No Types Assigned https://usn.ubuntu.com/3835-1/ Third Party Advisory Changed Reference Type http://www.openwall.com/lists/oss-security/2018/10/29/5 No Types Assigned http://www.openwall.com/lists/oss-security/2018/10/29/5 Mailing List, Patch, Third Party Advisory Changed Reference Type https://usn.ubuntu.com/3832-1/ No Types Assigned https://usn.ubuntu.com/3832-1/ Third Party Advisory Changed Reference Type https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=eb66ae030829605d61fbef1909ce310e29f78821 No Types Assigned https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=eb66ae030829605d61fbef1909ce310e29f78821 Patch, Vendor Advisory Changed Reference Type http://packetstormsecurity.com/files/150001/Linux-mremap-TLB-Flush-Too-Late.html No Types Assigned http://packetstormsecurity.com/files/150001/Linux-mremap-TLB-Flush-Too-Late.html Patch, Third Party Advisory, VDB Entry Added CWE CWE-20 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 3.2 up to (excluding) 4.9.135 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.9.136 up to (excluding) 4.14.78 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.14.79 up to (excluding) 4.18.16 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.18.17 up to (excluding) 4.19 Added CPE Configuration OR *cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Jan. 10, 2019
Action Type Old Value New Value Added Reference http://www.securityfocus.com/bid/106503 [No Types Assigned] -
CVE Modified by [email protected]
Dec. 04, 2018
Action Type Old Value New Value Added Reference https://usn.ubuntu.com/3835-1/ [No Types Assigned] -
CVE Modified by [email protected]
Nov. 30, 2018
Action Type Old Value New Value Added Reference https://usn.ubuntu.com/3832-1/ [No Types Assigned] -
CVE Modified by [email protected]
Nov. 01, 2018
Action Type Old Value New Value Added Reference http://www.securityfocus.com/bid/105761 [No Types Assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2018-18281 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2018-18281
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.11 }} 0.02%
score
0.43941
percentile