CVE-2022-49478
Pvrusb2 Array Index Out-of-Bounds Vulnerability
Description
In the Linux kernel, the following vulnerability has been resolved: media: pvrusb2: fix array-index-out-of-bounds in pvr2_i2c_core_init Syzbot reported that -1 is used as array index. The problem was in missing validation check. hdw->unit_number is initialized with -1 and then if init table walk fails this value remains unchanged. Since code blindly uses this member for array indexing adding sanity check is the easiest fix for that. hdw->workpoll initialization moved upper to prevent warning in __flush_work.
INFO
Published Date :
Feb. 26, 2025, 7:01 a.m.
Last Modified :
March 17, 2025, 4:07 p.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
5.9
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-2022-49478.
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).
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The following list is the news that have been mention
CVE-2022-49478 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2022-49478 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]
Mar. 17, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Added CWE CWE-129 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.20 up to (excluding) 5.4.198 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 up to (excluding) 5.10.121 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.15.46 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 up to (excluding) 5.17.14 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.18 up to (excluding) 5.18.3 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.10 up to (excluding) 4.14.283 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 2.6.18 up to (excluding) 4.9.318 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.15 up to (excluding) 4.19.247 Added Reference Type kernel.org: https://git.kernel.org/stable/c/1310fc3538dcc375a2f46ef0a438512c2ca32827 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/24e807541e4a9263ed928e6ae3498de3ad43bd1e Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/2e004fe914b243db41fa96f9e583385f360ea58e Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/3309c2c574e13b21b44729f5bdbf21f60189b79a Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/4351bfe36aba9fa7dc9d68d498d25d41a0f45e67 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/471bec68457aaf981add77b4f590d65dd7da1059 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/a3304766d9384886e6d3092c776273526947a2e9 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/a3660e06675bccec4bf149c7229ea1d491ba10d7 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/f99a8b1ec0eddc2931aeaa4f490277a15b39f511 Types: Patch -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Feb. 26, 2025
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: media: pvrusb2: fix array-index-out-of-bounds in pvr2_i2c_core_init Syzbot reported that -1 is used as array index. The problem was in missing validation check. hdw->unit_number is initialized with -1 and then if init table walk fails this value remains unchanged. Since code blindly uses this member for array indexing adding sanity check is the easiest fix for that. hdw->workpoll initialization moved upper to prevent warning in __flush_work. Added Reference https://git.kernel.org/stable/c/1310fc3538dcc375a2f46ef0a438512c2ca32827 Added Reference https://git.kernel.org/stable/c/24e807541e4a9263ed928e6ae3498de3ad43bd1e Added Reference https://git.kernel.org/stable/c/2e004fe914b243db41fa96f9e583385f360ea58e Added Reference https://git.kernel.org/stable/c/3309c2c574e13b21b44729f5bdbf21f60189b79a Added Reference https://git.kernel.org/stable/c/4351bfe36aba9fa7dc9d68d498d25d41a0f45e67 Added Reference https://git.kernel.org/stable/c/471bec68457aaf981add77b4f590d65dd7da1059 Added Reference https://git.kernel.org/stable/c/a3304766d9384886e6d3092c776273526947a2e9 Added Reference https://git.kernel.org/stable/c/a3660e06675bccec4bf149c7229ea1d491ba10d7 Added Reference https://git.kernel.org/stable/c/f99a8b1ec0eddc2931aeaa4f490277a15b39f511
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2022-49478 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-2022-49478
weaknesses.