CVE-2022-3170 — An out-of-bounds access issue was found in the Linux kernel sound subsystem

An out-of-bounds access issue was found in the Linux kernel sound subsystem. It could occur when the 'id->name' provided by the user did not end with '\0'. A privileged local user could pass a specially crafted name through ioctl() interface and crash the s

01What is this vulnerability?

An out-of-bounds access issue was found in the Linux kernel sound subsystem. It could occur when the 'id->name' provided by the user did not end with '\0'. A privileged local user could pass a specially crafted name through ioctl() interface and crash the system or potentially escalate their privileges on the system.

02Affected products

Vendor	Product	Versions
n	a / kernel	fixed in kernel 6.0-rc4

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2022-09-13T15:36:36.000Z
• Last modified: 2024-08-03T01:00:10.503Z

09References

• github.com — https://github.com/torvalds/linux/commit/6ab55ec0a938c7f943a4edba3d6514f77598388…
• github.com — https://github.com/torvalds/linux/commit/5934d9a0383619c14df91af8fd76261dc3de2f5…