SB2024062692 - Buffer overflow in Linux kernel core oss
Published: June 26, 2024 Updated: May 13, 2025
Security Bulletin ID
SB2024062692
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Buffer overflow (CVE-ID: CVE-2021-47509)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory corruption within the snd_pcm_oss_set_fragment1() function in sound/core/oss/pcm_oss.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/d1bb703ad050de9095f10b2d3416c32921ac6bcc
- https://git.kernel.org/stable/c/b02a41eebcc36d4f07196780f2e165ca2c499257
- https://git.kernel.org/stable/c/be55f306396cd62c6889286a7194fd8b53363aeb
- https://git.kernel.org/stable/c/2e54cf6794bf82a54aaefc78da13819aea9cd28a
- https://git.kernel.org/stable/c/76f19e4cbb548e28547f8c328aa0bfb3a10222d3
- https://git.kernel.org/stable/c/ad45babf7886e7a212ee1d5eda9ef49f696db43c
- https://git.kernel.org/stable/c/35a3e511032146941085f87dd9fb5b82ea5c00a2
- https://git.kernel.org/stable/c/8839c8c0f77ab8fc0463f4ab8b37fca3f70677c2
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.258
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.221
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.295
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.293
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.85
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.8
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.165