CVE-2016-8646
Linux Kernel hash_accept Local Denial of Service
Description
The hash_accept function in crypto/algif_hash.c in the Linux kernel before 4.3.6 allows local users to cause a denial of service (OOPS) by attempting to trigger use of in-kernel hash algorithms for a socket that has received zero bytes of data.
INFO
Published Date :
Nov. 28, 2016, 3:59 a.m.
Last Modified :
Feb. 12, 2023, 11:26 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
3.6
Exploitability Score :
1.8
Public PoC/Exploit Available at Github
CVE-2016-8646 has a 1 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-2016-8646.
| URL | Resource |
|---|---|
| http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=4afa5f9617927453ac04b24b584f6c718dfb4f45 | Issue Tracking Patch Vendor Advisory |
| http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.3.6 | Release Notes |
| http://www.openwall.com/lists/oss-security/2016/11/15/2 | Mailing List Third Party Advisory |
| http://www.securityfocus.com/bid/94309 | |
| https://access.redhat.com/errata/RHSA-2017:1297 | |
| https://access.redhat.com/errata/RHSA-2017:1298 | |
| https://access.redhat.com/errata/RHSA-2017:1308 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1388821 | Issue Tracking |
| https://github.com/torvalds/linux/commit/4afa5f9617927453ac04b24b584f6c718dfb4f45 | Issue Tracking 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).
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-2016-8646 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2016-8646 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.
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CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Feb. 12, 2023
Action Type Old Value New Value Changed Description A vulnerability was found in the Linux kernel. An unprivileged local user could trigger oops in shash_async_export() by attempting to force the in-kernel hashing algorithms into decrypting an empty data set. The hash_accept function in crypto/algif_hash.c in the Linux kernel before 4.3.6 allows local users to cause a denial of service (OOPS) by attempting to trigger use of in-kernel hash algorithms for a socket that has received zero bytes of data. Removed CVSS V2 Red Hat, Inc. (AV:L/AC:M/Au:N/C:N/I:N/A:C) Removed CVSS V3 Red Hat, Inc. AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Removed Reference https://access.redhat.com/security/cve/CVE-2016-8646 [No Types Assigned] -
CVE Modified by [email protected]
Feb. 02, 2023
Action Type Old Value New Value Changed Description The hash_accept function in crypto/algif_hash.c in the Linux kernel before 4.3.6 allows local users to cause a denial of service (OOPS) by attempting to trigger use of in-kernel hash algorithms for a socket that has received zero bytes of data. A vulnerability was found in the Linux kernel. An unprivileged local user could trigger oops in shash_async_export() by attempting to force the in-kernel hashing algorithms into decrypting an empty data set. Added CVSS V2 Red Hat, Inc. (AV:L/AC:M/Au:N/C:N/I:N/A:C) Added CVSS V3 Red Hat, Inc. AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Added Reference https://access.redhat.com/security/cve/CVE-2016-8646 [No Types Assigned] -
CVE Modified by [email protected]
Jan. 05, 2018
Action Type Old Value New Value Added Reference https://access.redhat.com/errata/RHSA-2017:1308 [No Types Assigned] Added Reference https://access.redhat.com/errata/RHSA-2017:1298 [No Types Assigned] Added Reference https://access.redhat.com/errata/RHSA-2017:1297 [No Types Assigned] -
Initial Analysis by [email protected]
Nov. 28, 2016
Action Type Old Value New Value Added CPE Configuration Configuration 1 OR *cpe:2.3:o:linux:linux_kernel:4.3.5:*:*:*:*:*:*:* (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 https://bugzilla.redhat.com/show_bug.cgi?id=1388821 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=1388821 Issue Tracking Changed Reference Type http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.3.6 No Types Assigned http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.3.6 Release Notes Changed Reference Type http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=4afa5f9617927453ac04b24b584f6c718dfb4f45 No Types Assigned http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=4afa5f9617927453ac04b24b584f6c718dfb4f45 Issue Tracking, Vendor Advisory, Patch Changed Reference Type http://www.openwall.com/lists/oss-security/2016/11/15/2 No Types Assigned http://www.openwall.com/lists/oss-security/2016/11/15/2 Third Party Advisory, Mailing List Changed Reference Type https://github.com/torvalds/linux/commit/4afa5f9617927453ac04b24b584f6c718dfb4f45 No Types Assigned https://github.com/torvalds/linux/commit/4afa5f9617927453ac04b24b584f6c718dfb4f45 Third Party Advisory, Issue Tracking, Patch Added CWE CWE-476 -
CVE Modified by [email protected]
Nov. 28, 2016
Action Type Old Value New Value Added Reference http://www.securityfocus.com/bid/94309 [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-2016-8646 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-2016-8646
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