CVE-2019-8912
Linux kernel af_alg Use-After-Free Vulnerability
Description
In the Linux kernel through 4.20.11, af_alg_release() in crypto/af_alg.c neglects to set a NULL value for a certain structure member, which leads to a use-after-free in sockfs_setattr.
INFO
Published Date :
Feb. 18, 2019, 6:29 p.m.
Last Modified :
June 2, 2021, 3:36 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
5.9
Exploitability Score :
1.8
Affected Products
The following products are affected by CVE-2019-8912
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-2019-8912.
| URL | Resource |
|---|---|
| http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00052.html | Mailing List Third Party Advisory |
| http://patchwork.ozlabs.org/patch/1042902/ | Patch Third Party Advisory |
| http://www.securityfocus.com/bid/107063 | Third Party Advisory VDB Entry |
| https://access.redhat.com/errata/RHSA-2020:0174 | Third Party Advisory |
| https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-8912 | Issue Tracking Patch Third Party Advisory |
| https://usn.ubuntu.com/3930-1/ | Third Party Advisory |
| https://usn.ubuntu.com/3930-2/ | Third Party Advisory |
| https://usn.ubuntu.com/3931-1/ | Third Party Advisory |
| https://usn.ubuntu.com/3931-2/ | 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-2019-8912 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2019-8912 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 -
Modified Analysis by [email protected]
Jun. 02, 2021
Action Type Old Value New Value Removed CVSS V3 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Changed Reference Type http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00052.html No Types Assigned http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00052.html Mailing List, Third Party Advisory Changed Reference Type https://access.redhat.com/errata/RHSA-2020:0174 No Types Assigned https://access.redhat.com/errata/RHSA-2020:0174 Third Party Advisory Changed Reference Type https://usn.ubuntu.com/3930-1/ No Types Assigned https://usn.ubuntu.com/3930-1/ Third Party Advisory Changed Reference Type https://usn.ubuntu.com/3930-2/ No Types Assigned https://usn.ubuntu.com/3930-2/ Third Party Advisory Changed Reference Type https://usn.ubuntu.com/3931-1/ No Types Assigned https://usn.ubuntu.com/3931-1/ Third Party Advisory Changed Reference Type https://usn.ubuntu.com/3931-2/ No Types Assigned https://usn.ubuntu.com/3931-2/ Third Party Advisory Changed CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (including) 4.20.11 OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.10 up to (excluding) 4.14.103 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.19 up to (excluding) 4.19.25 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.20 up to (excluding) 4.20.12 *cpe:2.3:o:linux:linux_kernel:5.0:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.0:rc2:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.0:rc3:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.0:rc4:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.0:rc5:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.0:rc6:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.0:rc7:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.0:rc8:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:o:opensuse:leap:15.0:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Jan. 21, 2020
Action Type Old Value New Value Added Reference https://access.redhat.com/errata/RHSA-2020:0174 [No Types Assigned] -
CVE Modified by [email protected]
Apr. 12, 2019
Action Type Old Value New Value Added Reference http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00052.html [No Types Assigned] -
CVE Modified by [email protected]
Apr. 03, 2019
Action Type Old Value New Value Added Reference https://usn.ubuntu.com/3931-2/ [No Types Assigned] Added Reference https://usn.ubuntu.com/3931-1/ [No Types Assigned] Added Reference https://usn.ubuntu.com/3930-2/ [No Types Assigned] Added Reference https://usn.ubuntu.com/3930-1/ [No Types Assigned] -
Reanalysis by [email protected]
Mar. 06, 2019
Action Type Old Value New Value Changed CVSS V2 (AV:N/AC:L/Au:N/C:P/I:P/A:P) (AV:L/AC:L/Au:N/C:C/I:C/A:C) Changed CVSS V3 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-8912 [Issue Tracking, Patch, Third Party Advisory] Added CPE Configuration OR *cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* -
Modified Analysis by [email protected]
Feb. 25, 2019
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (including) 4.20.10 OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (including) 4.20.11 -
CVE Modified by [email protected]
Feb. 21, 2019
Action Type Old Value New Value Changed Description In the Linux kernel through 4.20.10, af_alg_release() in crypto/af_alg.c neglects to set a NULL value for a certain structure member, which leads to a use-after-free in sockfs_setattr. In the Linux kernel through 4.20.11, af_alg_release() in crypto/af_alg.c neglects to set a NULL value for a certain structure member, which leads to a use-after-free in sockfs_setattr. -
Initial Analysis by [email protected]
Feb. 19, 2019
Action Type Old Value New Value Added CVSS V2 (AV:N/AC:L/Au:N/C:P/I:P/A:P) Added CVSS V3 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Changed Reference Type http://patchwork.ozlabs.org/patch/1042902/ No Types Assigned http://patchwork.ozlabs.org/patch/1042902/ Patch, Third Party Advisory Changed Reference Type http://www.securityfocus.com/bid/107063 No Types Assigned http://www.securityfocus.com/bid/107063 Third Party Advisory, VDB Entry Added CWE CWE-416 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (including) 4.20.10 -
CVE Modified by [email protected]
Feb. 19, 2019
Action Type Old Value New Value Added Reference http://www.securityfocus.com/bid/107063 [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-2019-8912 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-2019-8912
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.07 }} 0.03%
score
0.29951
percentile