CVE-2018-12633
VBoxGuest Linux Kernel Race Condition Information Disclosure Dos
Description
An issue was discovered in the Linux kernel through 4.17.2. vbg_misc_device_ioctl() in drivers/virt/vboxguest/vboxguest_linux.c reads the same user data twice with copy_from_user. The header part of the user data is double-fetched, and a malicious user thread can tamper with the critical variables (hdr.size_in and hdr.size_out) in the header between the two fetches because of a race condition, leading to severe kernel errors, such as buffer over-accesses. This bug can cause a local denial of service and information leakage.
INFO
Published Date :
June 22, 2018, 12:29 a.m.
Last Modified :
Aug. 21, 2018, 3:42 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
5.2
Exploitability Score :
1.0
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-2018-12633
.
URL | Resource |
---|---|
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=bd23a7269834dc7c1f93e83535d16ebc44b75eba | Patch Vendor Advisory |
https://bugzilla.kernel.org/show_bug.cgi?id=200131 | Issue Tracking Vendor Advisory |
https://github.com/torvalds/linux/commit/bd23a7269834dc7c1f93e83535d16ebc44b75eba | Patch Third Party Advisory |
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).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2018-12633
vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2018-12633
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 -
Initial Analysis by [email protected]
Aug. 21, 2018
Action Type Old Value New Value Added CVSS V2 (AV:L/AC:M/Au:N/C:C/I:N/A:C) Added CVSS V3 AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:H Changed Reference Type https://bugzilla.kernel.org/show_bug.cgi?id=200131 No Types Assigned https://bugzilla.kernel.org/show_bug.cgi?id=200131 Issue Tracking, Vendor Advisory Changed Reference Type http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=bd23a7269834dc7c1f93e83535d16ebc44b75eba No Types Assigned http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=bd23a7269834dc7c1f93e83535d16ebc44b75eba Patch, Vendor Advisory Changed Reference Type https://github.com/torvalds/linux/commit/bd23a7269834dc7c1f93e83535d16ebc44b75eba No Types Assigned https://github.com/torvalds/linux/commit/bd23a7269834dc7c1f93e83535d16ebc44b75eba Patch, Third Party Advisory Added CWE CWE-362 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (including) 4.17.2
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2018-12633
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-2018-12633
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.04 }} 0.00%
score
0.05635
percentile