CVE-2017-1000380

Severity: medium (CVSS 5.5 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2017-06-17 · updated 2026-06-17
Weakness: CWE-200

Description

sound/core/timer.c in the Linux kernel before 4.11.5 is vulnerable to a data race in the ALSA /dev/snd/timer driver resulting in local users being able to read information belonging to other users, i.e., uninitialized memory contents may be disclosed when a read and an ioctl happen at the same time.

Affected products

Linux kernel: through 4.11.4

References

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ba3021b2c79b2fa9114f92790a99deb27a65b728
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d11662f4f798b50d8c8743f433842c3e40fe3378
http://www.debian.org/security/2017/dsa-3981
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.11.5
http://www.openwall.com/lists/oss-security/2017/06/12/2
http://www.securityfocus.com/bid/99121
https://access.redhat.com/errata/RHSA-2017:3295
https://access.redhat.com/errata/RHSA-2017:3315
https://access.redhat.com/errata/RHSA-2017:3322
https://github.com/torvalds/linux/commit/ba3021b2c79b2fa9114f92790a99deb27a65b728
https://github.com/torvalds/linux/commit/d11662f4f798b50d8c8743f433842c3e40fe3378
https://source.android.com/security/bulletin/pixel/2017-12-01

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