CVE-2015-7550
Linux Keyctl Denial of Service Unclassified
Description
The keyctl_read_key function in security/keys/keyctl.c in the Linux kernel before 4.3.4 does not properly use a semaphore, which allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via a crafted application that leverages a race condition between keyctl_revoke and keyctl_read calls.
INFO
Published Date :
Feb. 8, 2016, 3:59 a.m.
Last Modified :
Nov. 21, 2024, 2:36 a.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
3.6
Exploitability Score :
1.8
Public PoC/Exploit Available at Github
CVE-2015-7550 has a 3 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
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-2015-7550.
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).
Map Vulnerabilities into Different Layers of the Container Image
Python
[ICSE 2022] Controlled Concurrency Testing via Periodical Scheduling
concurrency-testing concurrency-control
Dockerfile C Makefile Shell Roff C++ HTML Perl M4 Ruby
None
Python
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2015-7550 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2015-7550 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 -
CVE Modified by [email protected]
Nov. 04, 2017
Action Type Old Value New Value Added Reference http://www.debian.org/security/2016/dsa-3434 [No Types Assigned] -
CVE Modified by [email protected]
Dec. 06, 2016
Action Type Old Value New Value Added Reference http://www.ubuntu.com/usn/USN-2911-1 [No Types Assigned] Added Reference http://www.ubuntu.com/usn/USN-2890-1 [No Types Assigned] Added Reference http://www.ubuntu.com/usn/USN-2890-3 [No Types Assigned] Added Reference http://www.ubuntu.com/usn/USN-2890-2 [No Types Assigned] Added Reference http://www.ubuntu.com/usn/USN-2888-1 [No Types Assigned] Added Reference http://www.ubuntu.com/usn/USN-2911-2 [No Types Assigned] -
CVE Modified by [email protected]
Dec. 03, 2016
Action Type Old Value New Value Added Reference http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00094.html [No Types Assigned] Added Reference http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00045.html [No Types Assigned] -
CVE Modified by [email protected]
Nov. 28, 2016
Action Type Old Value New Value Added Reference http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.html [No Types Assigned] Added Reference http://www.securityfocus.com/bid/79903 [No Types Assigned] -
Modified Analysis by [email protected]
Mar. 01, 2016
Action Type Old Value New Value Added Evaluator Description <a href="http://cwe.mitre.org/data/definitions/476.html">CWE-476: NULL Pointer Dereference</a> Added CPE Configuration Configuration 1 OR *cpe:2.3:o:linux:linux_kernel:4.3.3:*:*:*:*:*:*:* (and previous) Added CVSS V2 (AV:L/AC:L/Au:N/C:N/I:N/A:C) Added CVSS V3 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Changed Reference Type http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.3.4 No Types Assigned http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.3.4 Advisory Changed Reference Type http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b4a1b4f5047e4f54e194681125c74c0aa64d637d No Types Assigned http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b4a1b4f5047e4f54e194681125c74c0aa64d637d Advisory Added CWE CWE-362 Added CWE NVD-CWE-Other -
Initial Analysis by [email protected]
Mar. 01, 2016
Action Type Old Value New Value -
Initial Analysis by [email protected]
Feb. 24, 2016
Action Type Old Value New Value
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2015-7550 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-2015-7550
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
0.08236
percentile