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CVE-2021-47509

MEDIUM

5.5

Descripcion

In the Linux kernel, the following vulnerability has been resolved: ALSA: pcm: oss: Limit the period size to 16MB Set the practical limit to the period size (the fragment shift in OSS) instead of a full 31bit; a too large value could lead to the exhaust of memory as we allocate temporary buffers of the period size, too. As of this patch, we set to 16MB limit, which should cover all use cases.

Detalles CVE

Puntuacion CVSS v3.15.5

SeveridadMEDIUM

Vector CVSSCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Vector de ataqueLOCAL

ComplejidadLOW

Privilegios requeridosLOW

Interaccion usuarioNONE

Publicado5/24/2024

Ultima modificacion9/29/2025

Fuentenvd

Avistamientos honeypot0

Productos afectados

linux:linux_kernel

Referencias

https://git.kernel.org/stable/c/2e54cf6794bf82a54aaefc78da13819aea9cd28a(416baaa9-dc9f-4396-8d5f-8c081fb06d67)

https://git.kernel.org/stable/c/35a3e511032146941085f87dd9fb5b82ea5c00a2(416baaa9-dc9f-4396-8d5f-8c081fb06d67)

https://git.kernel.org/stable/c/76f19e4cbb548e28547f8c328aa0bfb3a10222d3(416baaa9-dc9f-4396-8d5f-8c081fb06d67)

https://git.kernel.org/stable/c/8839c8c0f77ab8fc0463f4ab8b37fca3f70677c2(416baaa9-dc9f-4396-8d5f-8c081fb06d67)

https://git.kernel.org/stable/c/ad45babf7886e7a212ee1d5eda9ef49f696db43c(416baaa9-dc9f-4396-8d5f-8c081fb06d67)

https://git.kernel.org/stable/c/b02a41eebcc36d4f07196780f2e165ca2c499257(416baaa9-dc9f-4396-8d5f-8c081fb06d67)

https://git.kernel.org/stable/c/be55f306396cd62c6889286a7194fd8b53363aeb(416baaa9-dc9f-4396-8d5f-8c081fb06d67)

https://git.kernel.org/stable/c/d1bb703ad050de9095f10b2d3416c32921ac6bcc(416baaa9-dc9f-4396-8d5f-8c081fb06d67)

https://git.kernel.org/stable/c/2e54cf6794bf82a54aaefc78da13819aea9cd28a(af854a3a-2127-422b-91ae-364da2661108)

https://git.kernel.org/stable/c/35a3e511032146941085f87dd9fb5b82ea5c00a2(af854a3a-2127-422b-91ae-364da2661108)

https://git.kernel.org/stable/c/76f19e4cbb548e28547f8c328aa0bfb3a10222d3(af854a3a-2127-422b-91ae-364da2661108)

https://git.kernel.org/stable/c/8839c8c0f77ab8fc0463f4ab8b37fca3f70677c2(af854a3a-2127-422b-91ae-364da2661108)

https://git.kernel.org/stable/c/ad45babf7886e7a212ee1d5eda9ef49f696db43c(af854a3a-2127-422b-91ae-364da2661108)

https://git.kernel.org/stable/c/b02a41eebcc36d4f07196780f2e165ca2c499257(af854a3a-2127-422b-91ae-364da2661108)

https://git.kernel.org/stable/c/be55f306396cd62c6889286a7194fd8b53363aeb(af854a3a-2127-422b-91ae-364da2661108)

https://git.kernel.org/stable/c/d1bb703ad050de9095f10b2d3416c32921ac6bcc(af854a3a-2127-422b-91ae-364da2661108)

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