What’s Vulnerable › Vulnerabilities

CVE-2017-15265

• Severity: high (CVSS 7.0 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2017-10-16 · updated 2026-06-17
• Weakness: CWE-362

Description

Race condition in the ALSA subsystem in the Linux kernel before 4.13.8 allows local users to cause a denial of service (use-after-free) or possibly have unspecified other impact via crafted /dev/snd/seq ioctl calls, related to sound/core/seq/seq_clientmgr.c and sound/core/seq/seq_ports.c.

Affected products

• Linux kernel: before 3.2.95; from 3.3 before 3.10.108; from 3.11 before 3.16.50; from 3.17 before 3.18.76; from 3.19 before 4.1.46; from 4.2 before 4.4.93 — fixed in 3.10.108, 3.16.50, 3.18.76, 3.2.95, 4.1.46, 4.13.8

How to fix

Upgrade to a fixed version: Linux kernel 3.10.108, 3.16.50, 3.18.76, 3.2.95. Check the vendor advisory for mitigations.

References

• http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=71105998845fb012937332fe2e806d443c09e026
• http://mailman.alsa-project.org/pipermail/alsa-devel/2017-October/126292.html
• http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.8
• http://www.openwall.com/lists/oss-security/2017/10/11/3
• http://www.securityfocus.com/bid/101288
• http://www.securitytracker.com/id/1039561
• https://access.redhat.com/errata/RHSA-2018:0676
• https://access.redhat.com/errata/RHSA-2018:1062
• https://access.redhat.com/errata/RHSA-2018:1130
• https://access.redhat.com/errata/RHSA-2018:1170
• https://access.redhat.com/errata/RHSA-2018:2390
• https://access.redhat.com/errata/RHSA-2018:3822

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