CVE-2021-47263
Qualcomm WCD934x Linux GPIO Shift-Out-of-Bounds
Description
In the Linux kernel, the following vulnerability has been resolved: gpio: wcd934x: Fix shift-out-of-bounds error bit-mask for pins 0 to 4 is BIT(0) to BIT(4) however we ended up with BIT(n - 1) which is not right, and this was caught by below usban check UBSAN: shift-out-of-bounds in drivers/gpio/gpio-wcd934x.c:34:14
INFO
Published Date :
May 21, 2024, 3:15 p.m.
Last Modified :
April 30, 2025, 2:59 p.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
3.6
Exploitability Score :
1.8
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-2021-47263.
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-2021-47263 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-47263 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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Initial Analysis by [email protected]
Apr. 30, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Added CWE NVD-CWE-Other Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:5.13:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.13:rc2:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.13:rc3:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.13:rc4:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.13:rc5:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.12.11 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.6 up to (excluding) 5.10.44 Added Reference Type CVE: https://git.kernel.org/stable/c/dbec64b11c65d74f31427e2b9d5746fbf17bf840 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/dbec64b11c65d74f31427e2b9d5746fbf17bf840 Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/dd55331d493b7ea75c5db1f24d6822946fde2862 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/dd55331d493b7ea75c5db1f24d6822946fde2862 Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/e0b518a2eb44d8a74c19e50f79a8ed393e96d634 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/e0b518a2eb44d8a74c19e50f79a8ed393e96d634 Types: 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/dbec64b11c65d74f31427e2b9d5746fbf17bf840 Added Reference https://git.kernel.org/stable/c/dd55331d493b7ea75c5db1f24d6822946fde2862 Added Reference https://git.kernel.org/stable/c/e0b518a2eb44d8a74c19e50f79a8ed393e96d634 -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 28, 2024
Action Type Old Value New Value -
CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 21, 2024
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: gpio: wcd934x: Fix shift-out-of-bounds error bit-mask for pins 0 to 4 is BIT(0) to BIT(4) however we ended up with BIT(n - 1) which is not right, and this was caught by below usban check UBSAN: shift-out-of-bounds in drivers/gpio/gpio-wcd934x.c:34:14 Added Reference kernel.org https://git.kernel.org/stable/c/e0b518a2eb44d8a74c19e50f79a8ed393e96d634 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/dd55331d493b7ea75c5db1f24d6822946fde2862 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/dbec64b11c65d74f31427e2b9d5746fbf17bf840 [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-2021-47263 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-2021-47263
weaknesses.