CVE-2021-47016
Ambicron Linux Timer Overflow Vulnerability
Description
In the Linux kernel, the following vulnerability has been resolved: m68k: mvme147,mvme16x: Don't wipe PCC timer config bits Don't clear the timer 1 configuration bits when clearing the interrupt flag and counter overflow. As Michael reported, "This results in no timer interrupts being delivered after the first. Initialization then hangs in calibrate_delay as the jiffies counter is not updated." On mvme16x, enable the timer after requesting the irq, consistent with mvme147.
INFO
Published Date :
Feb. 29, 2024, 11:15 p.m.
Last Modified :
Jan. 9, 2025, 7:52 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- n/a
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-2021-47016.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-47016 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-2021-47016
weaknesses.
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-2021-47016 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-47016 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.
-
Initial Analysis by [email protected]
Jan. 09, 2025
Action Type Old Value New Value Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Added CWE NIST NVD-CWE-noinfo Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.2 up to (excluding) 5.4.119 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 up to (excluding) 5.10.37 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.11.21 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.12 up to (excluding) 5.12.4 Changed Reference Type https://git.kernel.org/stable/c/1dfb26df15fc7036a74221d43de7427f74293dae No Types Assigned https://git.kernel.org/stable/c/1dfb26df15fc7036a74221d43de7427f74293dae Patch Changed Reference Type https://git.kernel.org/stable/c/1dfb26df15fc7036a74221d43de7427f74293dae No Types Assigned https://git.kernel.org/stable/c/1dfb26df15fc7036a74221d43de7427f74293dae Patch Changed Reference Type https://git.kernel.org/stable/c/43262178c043032e7c42d00de44c818ba05f9967 No Types Assigned https://git.kernel.org/stable/c/43262178c043032e7c42d00de44c818ba05f9967 Patch Changed Reference Type https://git.kernel.org/stable/c/43262178c043032e7c42d00de44c818ba05f9967 No Types Assigned https://git.kernel.org/stable/c/43262178c043032e7c42d00de44c818ba05f9967 Patch Changed Reference Type https://git.kernel.org/stable/c/5d34225169346cab5145978d153b9ce90e9ace21 No Types Assigned https://git.kernel.org/stable/c/5d34225169346cab5145978d153b9ce90e9ace21 Patch Changed Reference Type https://git.kernel.org/stable/c/5d34225169346cab5145978d153b9ce90e9ace21 No Types Assigned https://git.kernel.org/stable/c/5d34225169346cab5145978d153b9ce90e9ace21 Patch Changed Reference Type https://git.kernel.org/stable/c/73fdeb612d25b5e105c219e05434285a45d23576 No Types Assigned https://git.kernel.org/stable/c/73fdeb612d25b5e105c219e05434285a45d23576 Patch Changed Reference Type https://git.kernel.org/stable/c/73fdeb612d25b5e105c219e05434285a45d23576 No Types Assigned https://git.kernel.org/stable/c/73fdeb612d25b5e105c219e05434285a45d23576 Patch Changed Reference Type https://git.kernel.org/stable/c/f6a90818a32058fca62cda3a2027a6a2364e1878 No Types Assigned https://git.kernel.org/stable/c/f6a90818a32058fca62cda3a2027a6a2364e1878 Patch Changed Reference Type https://git.kernel.org/stable/c/f6a90818a32058fca62cda3a2027a6a2364e1878 No Types Assigned https://git.kernel.org/stable/c/f6a90818a32058fca62cda3a2027a6a2364e1878 Patch -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://git.kernel.org/stable/c/1dfb26df15fc7036a74221d43de7427f74293dae Added Reference https://git.kernel.org/stable/c/43262178c043032e7c42d00de44c818ba05f9967 Added Reference https://git.kernel.org/stable/c/5d34225169346cab5145978d153b9ce90e9ace21 Added Reference https://git.kernel.org/stable/c/73fdeb612d25b5e105c219e05434285a45d23576 Added Reference https://git.kernel.org/stable/c/f6a90818a32058fca62cda3a2027a6a2364e1878 -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 28, 2024
Action Type Old Value New Value -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 14, 2024
Action Type Old Value New Value -
CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Feb. 29, 2024
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: m68k: mvme147,mvme16x: Don't wipe PCC timer config bits Don't clear the timer 1 configuration bits when clearing the interrupt flag and counter overflow. As Michael reported, "This results in no timer interrupts being delivered after the first. Initialization then hangs in calibrate_delay as the jiffies counter is not updated." On mvme16x, enable the timer after requesting the irq, consistent with mvme147. Added Reference Linux https://git.kernel.org/stable/c/f6a90818a32058fca62cda3a2027a6a2364e1878 [No types assigned] Added Reference Linux https://git.kernel.org/stable/c/1dfb26df15fc7036a74221d43de7427f74293dae [No types assigned] Added Reference Linux https://git.kernel.org/stable/c/73fdeb612d25b5e105c219e05434285a45d23576 [No types assigned] Added Reference Linux https://git.kernel.org/stable/c/5d34225169346cab5145978d153b9ce90e9ace21 [No types assigned] Added Reference Linux https://git.kernel.org/stable/c/43262178c043032e7c42d00de44c818ba05f9967 [No types assigned]