cbcvebase.
CVE-2021-47509
published 2024-05-24

CVE-2021-47509: 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…

PriorityP419medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.24%
15.1th percentile
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.

Affected

22 ranges
VendorProductVersion rangeFixed in
debianlinux< linux 5.15.15-1 (bookworm)linux 5.15.15-1 (bookworm)
linuxlinux——
linuxlinux>= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < d1bb703ad050de9095f10b2d3416c32921ac6bccd1bb703ad050de9095f10b2d3416c32921ac6bcc
linuxlinux>= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < b02a41eebcc36d4f07196780f2e165ca2c499257b02a41eebcc36d4f07196780f2e165ca2c499257
linuxlinux>= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < be55f306396cd62c6889286a7194fd8b53363aebbe55f306396cd62c6889286a7194fd8b53363aeb
linuxlinux>= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 2e54cf6794bf82a54aaefc78da13819aea9cd28a2e54cf6794bf82a54aaefc78da13819aea9cd28a
linuxlinux>= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 76f19e4cbb548e28547f8c328aa0bfb3a10222d376f19e4cbb548e28547f8c328aa0bfb3a10222d3
linuxlinux>= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < ad45babf7886e7a212ee1d5eda9ef49f696db43cad45babf7886e7a212ee1d5eda9ef49f696db43c
linuxlinux>= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 35a3e511032146941085f87dd9fb5b82ea5c00a235a3e511032146941085f87dd9fb5b82ea5c00a2
linuxlinux>= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 8839c8c0f77ab8fc0463f4ab8b37fca3f70677c28839c8c0f77ab8fc0463f4ab8b37fca3f70677c2
linuxlinux_kernel< 4.4.2954.4.295
linuxlinux_kernel——
linuxlinux_kernel>= 0 < 5.10.92-15.10.92-1
linuxlinux_kernel>= 0 < 5.15.15-15.15.15-1
linuxlinux_kernel>= 0 < 5.15.15-15.15.15-1
linuxlinux_kernel>= 0 < 5.15.15-15.15.15-1
linuxlinux_kernel>= 4.10 < 4.14.2584.14.258
linuxlinux_kernel>= 4.15 < 4.19.2214.19.221
linuxlinux_kernel>= 4.20 < 5.4.1655.4.165
linuxlinux_kernel>= 4.5 < 4.9.2934.9.293
linuxlinux_kernel>= 5.11 < 5.15.85.15.8
linuxlinux_kernel>= 5.5 < 5.10.855.10.85

CVSS provenance

nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv5.5MEDIUM
vendor_debian5.5MEDIUM
vendor_redhat5.5MEDIUM
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