CVE-2019-19807
Linux Kernel Use-After-Free Vulnerability in snd_timer_open/snd_timer_close_locked
Description
In the Linux kernel before 5.3.11, sound/core/timer.c has a use-after-free caused by erroneous code refactoring, aka CID-e7af6307a8a5. This is related to snd_timer_open and snd_timer_close_locked. The timeri variable was originally intended to be for a newly created timer instance, but was used for a different purpose after refactoring.
INFO
Published Date :
Dec. 15, 2019, 11:15 p.m.
Last Modified :
Jan. 17, 2023, 9:31 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
5.9
Exploitability Score :
1.8
Public PoC/Exploit Available at Github
CVE-2019-19807 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-2019-19807.
| URL | Resource |
|---|---|
| https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3.11 | Release Notes Vendor Advisory |
| https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=e7af6307a8a54f0b873960b32b6a644f2d0fbd97 | Exploit Patch Vendor Advisory |
| https://github.com/torvalds/linux/commit/e7af6307a8a54f0b873960b32b6a644f2d0fbd97 | Patch Third Party Advisory |
| https://security.netapp.com/advisory/ntap-20200103-0001/ | Third Party Advisory |
| https://usn.ubuntu.com/4225-1/ | Third Party Advisory |
| https://usn.ubuntu.com/4227-1/ | Third Party Advisory |
| https://usn.ubuntu.com/4227-2/ | 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).
Map Vulnerabilities into Different Layers of the Container Image
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Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2019-19807 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2019-19807 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 -
Reanalysis by [email protected]
Jan. 17, 2023
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 5.3.11 OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.9.199 up to (excluding) 4.9.201 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.14.152 up to (excluding) 4.14.154 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.19.82 up to (excluding) 4.19.84 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.2 up to (excluding) 5.3.11 -
Modified Analysis by [email protected]
Jan. 30, 2020
Action Type Old Value New Value Removed CVSS V2 NIST (AV:L/AC:L/Au:N/C:N/I:N/A:C) Added CVSS V2 NIST (AV:L/AC:L/Au:N/C:C/I:C/A:C) Removed CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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 https://security.netapp.com/advisory/ntap-20200103-0001/ No Types Assigned https://security.netapp.com/advisory/ntap-20200103-0001/ Third Party Advisory Changed Reference Type https://usn.ubuntu.com/4225-1/ No Types Assigned https://usn.ubuntu.com/4225-1/ Third Party Advisory Changed Reference Type https://usn.ubuntu.com/4227-1/ No Types Assigned https://usn.ubuntu.com/4227-1/ Third Party Advisory Changed Reference Type https://usn.ubuntu.com/4227-2/ No Types Assigned https://usn.ubuntu.com/4227-2/ Third Party Advisory Added CPE Configuration OR *cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Jan. 07, 2020
Action Type Old Value New Value Added Reference https://usn.ubuntu.com/4225-1/ [No Types Assigned] Added Reference https://usn.ubuntu.com/4227-2/ [No Types Assigned] -
CVE Modified by [email protected]
Jan. 07, 2020
Action Type Old Value New Value Added Reference https://usn.ubuntu.com/4227-1/ [No Types Assigned] -
CVE Modified by [email protected]
Jan. 03, 2020
Action Type Old Value New Value Added Reference https://security.netapp.com/advisory/ntap-20200103-0001/ [No Types Assigned] -
Initial Analysis by [email protected]
Dec. 17, 2019
Action Type Old Value New Value Added CVSS V2 NIST (AV:L/AC:L/Au:N/C:N/I:N/A:C) Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Changed Reference Type https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3.11 No Types Assigned https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3.11 Release Notes, Vendor Advisory Changed Reference Type https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=e7af6307a8a54f0b873960b32b6a644f2d0fbd97 No Types Assigned https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=e7af6307a8a54f0b873960b32b6a644f2d0fbd97 Exploit, Patch, Vendor Advisory Changed Reference Type https://github.com/torvalds/linux/commit/e7af6307a8a54f0b873960b32b6a644f2d0fbd97 No Types Assigned https://github.com/torvalds/linux/commit/e7af6307a8a54f0b873960b32b6a644f2d0fbd97 Patch, Third Party Advisory Added CWE NIST CWE-416 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 5.3.11
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2019-19807 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-2019-19807
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.10 }} 0.00%
score
0.38652
percentile