CVE-2021-47211

low-risk
Published 2024-04-10

In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: fix null pointer dereference on pointer cs_desc The pointer cs_desc return from snd_usb_find_clock_source could be null, so there is a potential null pointer dereference issue. Fix this by adding a null check before dereference.

Do I need to act?

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0.01% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.5/10 Medium
LOCAL / LOW complexity

Affected Products (1)

Affected Vendors

Linux

References (4)

Patch https://git.kernel.org/stable/c/58fa50de595f152900594c28ec9915c169643739
Patch https://git.kernel.org/stable/c/b97053df0f04747c3c1e021ecbe99db675342954
Patch https://git.kernel.org/stable/c/58fa50de595f152900594c28ec9915c169643739
Patch https://git.kernel.org/stable/c/b97053df0f04747c3c1e021ecbe99db675342954
23
/ 100
low-risk
Severity 18/34 · Moderate
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal