5.5
MEDIUM
CVE-2017-18344
Oracle Linux Kernel Timer CreateSigevent Notify Out-of-Bounds Read Vulnerability
Description

The timer_create syscall implementation in kernel/time/posix-timers.c in the Linux kernel before 4.14.8 doesn't properly validate the sigevent->sigev_notify field, which leads to out-of-bounds access in the show_timer function (called when /proc/$PID/timers is read). This allows userspace applications to read arbitrary kernel memory (on a kernel built with CONFIG_POSIX_TIMERS and CONFIG_CHECKPOINT_RESTORE).

INFO

Published Date :

July 26, 2018, 7:29 p.m.

Last Modified :

Nov. 21, 2024, 3:19 a.m.

Remotely Exploitable :

No

Impact Score :

3.6

Exploitability Score :

1.8
Public PoC/Exploit Available at Github

CVE-2017-18344 has a 11 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-2017-18344 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.

ID Vendor Product Action
1 Redhat enterprise_linux_desktop
2 Redhat enterprise_linux_server
3 Redhat enterprise_linux_workstation
4 Redhat enterprise_linux_server_aus
5 Redhat enterprise_linux_server_eus
6 Redhat enterprise_linux_server_tus
7 Redhat mrg_realtime
1 Linux linux_kernel
1 Canonical ubuntu_linux
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-2017-18344.

URL Resource
http://www.securityfocus.com/bid/104909 Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1041414 Third Party Advisory VDB Entry
https://access.redhat.com/errata/RHSA-2018:2948 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3083 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3096 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3459 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3540 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3586 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3590 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3591 Third Party Advisory
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.8 Third Party Advisory
https://github.com/torvalds/linux/commit/cef31d9af908243421258f1df35a4a644604efbe Patch Third Party Advisory
https://usn.ubuntu.com/3742-1/ Third Party Advisory
https://usn.ubuntu.com/3742-2/ Third Party Advisory
https://www.exploit-db.com/exploits/45175/ Exploit Third Party Advisory VDB Entry
http://www.securityfocus.com/bid/104909 Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1041414 Third Party Advisory VDB Entry
https://access.redhat.com/errata/RHSA-2018:2948 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3083 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3096 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3459 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3540 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3586 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3590 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3591 Third Party Advisory
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.8 Third Party Advisory
https://github.com/torvalds/linux/commit/cef31d9af908243421258f1df35a4a644604efbe Patch Third Party Advisory
https://usn.ubuntu.com/3742-1/ Third Party Advisory
https://usn.ubuntu.com/3742-2/ Third Party Advisory
https://www.exploit-db.com/exploits/45175/ Exploit Third Party Advisory VDB Entry

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

Updated: 3 weeks, 4 days ago
7 stars 0 fork 0 watcher
Born at : Feb. 25, 2023, 10:40 a.m. This repo has been linked 178 different CVEs too.

None

Updated: 1 year, 11 months ago
0 stars 0 fork 0 watcher
Born at : Jan. 11, 2023, 1:21 p.m. This repo has been linked 1044 different CVEs too.

LPE on linux kernel based on CVE-2017-14954, CVE-2017-18344, CVE-2017-5123

C

Updated: 2 years, 9 months ago
1 stars 1 fork 1 watcher
Born at : March 11, 2022, 12:54 p.m. This repo has been linked 3 different CVEs too.

Linux内核利用资料精选

Updated: 1 year, 5 months ago
1 stars 11 fork 11 watcher
Born at : Feb. 4, 2022, 5:30 a.m. This repo has been linked 3 different CVEs too.

None

Updated: 4 months, 1 week ago
13 stars 4 fork 4 watcher
Born at : May 25, 2020, 7:51 a.m. This repo has been linked 1029 different CVEs too.

Kernel Address Space Layout Derandomization (KASLD) - A collection of various techniques to infer the Linux kernel base virtual address as an unprivileged local user, for the purpose of bypassing Kernel Address Space Layout Randomization (KASLR).

kaslr linux linux-kernel linux-kaslr kernel-exploit kernel

C Shell Makefile

Updated: 2 weeks, 4 days ago
421 stars 47 fork 47 watcher
Born at : Dec. 30, 2019, 5:12 a.m. This repo has been linked 25 different CVEs too.

Escape from Docker using CVE-2017-1000112 and CVE-2017-18344, including gaining root privilage, get all capbilities, namespace recovery, filesystem recovery, cgroup limitation bypass and seccomp bypass.

Makefile C Shell Python Perl Assembly C++ Objective-C Awk GDB

Updated: 5 years, 2 months ago
0 stars 0 fork 0 watcher
Born at : Sept. 17, 2019, 7:38 a.m. This repo has been linked 2 different CVEs too.

Localroot Compile

C Shell Python

Updated: 4 months, 1 week ago
24 stars 23 fork 23 watcher
Born at : Aug. 1, 2019, 11:25 a.m. This repo has been linked 31 different CVEs too.

✍️ A curated list of CVE PoCs.

awesome cve poc

Updated: 2 weeks, 3 days ago
3331 stars 680 fork 680 watcher
Born at : Feb. 2, 2017, 6:43 a.m. This repo has been linked 1044 different CVEs too.

A collection of links related to Linux kernel security and exploitation

linux-kernel kernel-exploitation exploit privilege-escalation security

Updated: 2 weeks, 2 days ago
5658 stars 912 fork 912 watcher
Born at : Nov. 13, 2016, 10:21 p.m. This repo has been linked 239 different CVEs too.

My proof-of-concept exploits for the Linux kernel

linux-kernel kernel-exploitation exploit privilege-escalation

Python C

Updated: 2 weeks, 3 days ago
1453 stars 356 fork 356 watcher
Born at : Feb. 16, 2016, 12:05 p.m. This repo has been linked 6 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2017-18344 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2017-18344 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 af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference http://www.securityfocus.com/bid/104909
    Added Reference http://www.securitytracker.com/id/1041414
    Added Reference https://access.redhat.com/errata/RHSA-2018:2948
    Added Reference https://access.redhat.com/errata/RHSA-2018:3083
    Added Reference https://access.redhat.com/errata/RHSA-2018:3096
    Added Reference https://access.redhat.com/errata/RHSA-2018:3459
    Added Reference https://access.redhat.com/errata/RHSA-2018:3540
    Added Reference https://access.redhat.com/errata/RHSA-2018:3586
    Added Reference https://access.redhat.com/errata/RHSA-2018:3590
    Added Reference https://access.redhat.com/errata/RHSA-2018:3591
    Added Reference https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.8
    Added Reference https://github.com/torvalds/linux/commit/cef31d9af908243421258f1df35a4a644604efbe
    Added Reference https://usn.ubuntu.com/3742-1/
    Added Reference https://usn.ubuntu.com/3742-2/
    Added Reference https://www.exploit-db.com/exploits/45175/
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CPE Deprecation Remap by [email protected]

    Oct. 15, 2020

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:o:redhat:virtualization:4.0:*:*:*:*:*:*:* OR *cpe:2.3:a:redhat:virtualization:4.0:*:*:*:*:*:*:*
  • Modified Analysis by [email protected]

    Mar. 28, 2019

    Action Type Old Value New Value
    Changed Reference Type https://access.redhat.com/errata/RHSA-2018:2948 No Types Assigned https://access.redhat.com/errata/RHSA-2018:2948 Third Party Advisory
    Changed Reference Type https://access.redhat.com/errata/RHSA-2018:3459 No Types Assigned https://access.redhat.com/errata/RHSA-2018:3459 Third Party Advisory
    Changed Reference Type https://access.redhat.com/errata/RHSA-2018:3096 No Types Assigned https://access.redhat.com/errata/RHSA-2018:3096 Third Party Advisory
    Changed Reference Type https://access.redhat.com/errata/RHSA-2018:3591 No Types Assigned https://access.redhat.com/errata/RHSA-2018:3591 Third Party Advisory
    Changed Reference Type https://access.redhat.com/errata/RHSA-2018:3590 No Types Assigned https://access.redhat.com/errata/RHSA-2018:3590 Third Party Advisory
    Changed Reference Type https://access.redhat.com/errata/RHSA-2018:3083 No Types Assigned https://access.redhat.com/errata/RHSA-2018:3083 Third Party Advisory
    Changed Reference Type https://access.redhat.com/errata/RHSA-2018:3586 No Types Assigned https://access.redhat.com/errata/RHSA-2018:3586 Third Party Advisory
    Changed Reference Type https://access.redhat.com/errata/RHSA-2018:3540 No Types Assigned https://access.redhat.com/errata/RHSA-2018:3540 Third Party Advisory
    Added CPE Configuration OR *cpe:2.3:a:redhat:mrg_realtime:2.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_server_aus:7.2:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_server_aus:7.3:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_server_aus:7.4:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_server_eus:7.3:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_server_eus:7.5:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_server_tus:7.2:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_server_tus:7.3:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_server_tus:7.4:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:virtualization:4.0:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Nov. 14, 2018

    Action Type Old Value New Value
    Added Reference https://access.redhat.com/errata/RHSA-2018:3591 [No Types Assigned]
    Added Reference https://access.redhat.com/errata/RHSA-2018:3590 [No Types Assigned]
    Added Reference https://access.redhat.com/errata/RHSA-2018:3586 [No Types Assigned]
    Added Reference https://access.redhat.com/errata/RHSA-2018:3540 [No Types Assigned]
  • CVE Modified by [email protected]

    Nov. 07, 2018

    Action Type Old Value New Value
    Added Reference https://access.redhat.com/errata/RHSA-2018:3459 [No Types Assigned]
  • CVE Modified by [email protected]

    Oct. 31, 2018

    Action Type Old Value New Value
    Added Reference https://access.redhat.com/errata/RHSA-2018:3096 [No Types Assigned]
    Added Reference https://access.redhat.com/errata/RHSA-2018:3083 [No Types Assigned]
    Added Reference https://access.redhat.com/errata/RHSA-2018:2948 [No Types Assigned]
  • Initial Analysis by [email protected]

    Oct. 02, 2018

    Action Type Old Value New Value
    Added CVSS V2 (AV:L/AC:L/Au:N/C:P/I:N/A:N)
    Added CVSS V3 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
    Changed Reference Type http://www.securityfocus.com/bid/104909 No Types Assigned http://www.securityfocus.com/bid/104909 Third Party Advisory, VDB Entry
    Changed Reference Type https://www.exploit-db.com/exploits/45175/ No Types Assigned https://www.exploit-db.com/exploits/45175/ Exploit, Third Party Advisory, VDB Entry
    Changed Reference Type https://github.com/torvalds/linux/commit/cef31d9af908243421258f1df35a4a644604efbe No Types Assigned https://github.com/torvalds/linux/commit/cef31d9af908243421258f1df35a4a644604efbe Patch, Third Party Advisory
    Changed Reference Type https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.8 No Types Assigned https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.8 Third Party Advisory
    Changed Reference Type http://www.securitytracker.com/id/1041414 No Types Assigned http://www.securitytracker.com/id/1041414 Third Party Advisory, VDB Entry
    Changed Reference Type https://usn.ubuntu.com/3742-2/ No Types Assigned https://usn.ubuntu.com/3742-2/ Third Party Advisory
    Changed Reference Type https://usn.ubuntu.com/3742-1/ No Types Assigned https://usn.ubuntu.com/3742-1/ Third Party Advisory
    Added CWE CWE-125
    Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 4.14.8
    Added CPE Configuration OR *cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
  • CVE Modified by [email protected]

    Aug. 15, 2018

    Action Type Old Value New Value
    Added Reference https://usn.ubuntu.com/3742-2/ [No Types Assigned]
    Added Reference https://usn.ubuntu.com/3742-1/ [No Types Assigned]
  • CVE Modified by [email protected]

    Aug. 12, 2018

    Action Type Old Value New Value
    Added Reference https://www.exploit-db.com/exploits/45175/ [No Types Assigned]
  • CVE Modified by [email protected]

    Aug. 04, 2018

    Action Type Old Value New Value
    Added Reference http://www.securitytracker.com/id/1041414 [No Types Assigned]
  • CVE Modified by [email protected]

    Aug. 01, 2018

    Action Type Old Value New Value
    Added Reference http://www.securityfocus.com/bid/104909 [No Types Assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2017-18344 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-2017-18344 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.12 }} 0.02%

score

0.46968

percentile

CVSS30 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability