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CVE-2021-47509

MEDIUM

5.5

Descricao

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.

Detalhes CVE

Pontuacao CVSS v3.15.5

SeveridadeMEDIUM

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

Vetor de ataqueLOCAL

ComplexidadeLOW

Privilegios necessariosLOW

Interacao do usuarioNONE

Publicado5/24/2024

Ultima modificacao9/29/2025

Fontenvd

Avistamentos honeypot0

Produtos afetados

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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