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CVE-2021-47477
HIGH7.8
Beschreibung
In the Linux kernel, the following vulnerability has been resolved: comedi: dt9812: fix DMA buffers on stack USB transfer buffers are typically mapped for DMA and must not be allocated on the stack or transfers will fail. Allocate proper transfer buffers in the various command helpers and return an error on short transfers instead of acting on random stack data. Note that this also fixes a stack info leak on systems where DMA is not used as 32 bytes are always sent to the device regardless of how short the command is.
CVE Details
CVSS v3.1 Bewertung7.8
SchweregradHIGH
CVSS VektorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
AngriffsvektorLOCAL
KomplexitatLOW
Erforderliche PrivilegienLOW
BenutzerinteraktionNONE
Veroffentlicht5/22/2024
Zuletzt geandert9/24/2025
Quellenvd
Honeypot-Sichtungen0
Betroffene Produkte
linux:linux_kernel
Schwachen (CWE)
CWE-787
Referenzen
https://git.kernel.org/stable/c/20cebb8b620dc987e55ddc46801de986e081757e(416baaa9-dc9f-4396-8d5f-8c081fb06d67)
https://git.kernel.org/stable/c/365a346cda82f51d835c49136a00a9df8a78c7f2(416baaa9-dc9f-4396-8d5f-8c081fb06d67)
https://git.kernel.org/stable/c/39ea61037ae78f14fa121228dd962ea3280eacf3(416baaa9-dc9f-4396-8d5f-8c081fb06d67)
https://git.kernel.org/stable/c/3ac273d154d634e2034508a14db82a95d7ad12ed(416baaa9-dc9f-4396-8d5f-8c081fb06d67)
https://git.kernel.org/stable/c/3efb7af8ac437085b6c776e5b54830b149d86efe(416baaa9-dc9f-4396-8d5f-8c081fb06d67)
https://git.kernel.org/stable/c/536de747bc48262225889a533db6650731ab25d3(416baaa9-dc9f-4396-8d5f-8c081fb06d67)
https://git.kernel.org/stable/c/786f5b03450454557ff858a8bead5d7c0cbf78d6(416baaa9-dc9f-4396-8d5f-8c081fb06d67)
https://git.kernel.org/stable/c/8a52bc480992c7c9da3ebfea456af731f50a4b97(416baaa9-dc9f-4396-8d5f-8c081fb06d67)
https://git.kernel.org/stable/c/a6af69768d5cb4b2528946d53be5fa19ade37723(416baaa9-dc9f-4396-8d5f-8c081fb06d67)
https://git.kernel.org/stable/c/20cebb8b620dc987e55ddc46801de986e081757e(af854a3a-2127-422b-91ae-364da2661108)
https://git.kernel.org/stable/c/365a346cda82f51d835c49136a00a9df8a78c7f2(af854a3a-2127-422b-91ae-364da2661108)
https://git.kernel.org/stable/c/39ea61037ae78f14fa121228dd962ea3280eacf3(af854a3a-2127-422b-91ae-364da2661108)
https://git.kernel.org/stable/c/3ac273d154d634e2034508a14db82a95d7ad12ed(af854a3a-2127-422b-91ae-364da2661108)
https://git.kernel.org/stable/c/3efb7af8ac437085b6c776e5b54830b149d86efe(af854a3a-2127-422b-91ae-364da2661108)
https://git.kernel.org/stable/c/536de747bc48262225889a533db6650731ab25d3(af854a3a-2127-422b-91ae-364da2661108)
https://git.kernel.org/stable/c/786f5b03450454557ff858a8bead5d7c0cbf78d6(af854a3a-2127-422b-91ae-364da2661108)
https://git.kernel.org/stable/c/8a52bc480992c7c9da3ebfea456af731f50a4b97(af854a3a-2127-422b-91ae-364da2661108)
https://git.kernel.org/stable/c/a6af69768d5cb4b2528946d53be5fa19ade37723(af854a3a-2127-422b-91ae-364da2661108)
IOC Korrelationen
Keine Korrelationen erfasst
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