CVE-2019-15214 — An issue was discovered in the Linux kernel before 5

An issue was discovered in the Linux kernel before 5.0.10. There is a use-after-free in the sound subsystem because card disconnection causes certain data structures to be deleted too early. This is related to sound/core/init.c and sound/core/info.c.

01What is this vulnerability?

An issue was discovered in the Linux kernel before 5.0.10. There is a use-after-free in the sound subsystem because card disconnection causes certain data structures to be deleted too early. This is related to sound/core/init.c and sound/core/info.c.

02Affected products

Vendor	Product	Versions
n	a / n/a	n/a

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: 2019-08-19T21:46:57.000Z
• Last modified: 2024-08-05T00:42:03.681Z

09References

• cdn.kernel.org — https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.0.10
• git.kernel.org — https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=2a…
• git.kernel.org — https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=8c…
• syzkaller.appspot.com — https://syzkaller.appspot.com/bug?id=75903e0021cef79bc434d068b5169b599b2a46a9
• www.openwall.com — http://www.openwall.com/lists/oss-security/2019/08/20/2
• usn.ubuntu.com — https://usn.ubuntu.com/4115-1/
• usn.ubuntu.com — https://usn.ubuntu.com/4118-1/
• security.netapp.com — https://security.netapp.com/advisory/ntap-20190905-0002/
• lists.opensuse.org — http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00064.html
• lists.opensuse.org — http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00066.html