Bug 1759059 (CVE-2019-15927) - CVE-2019-15927 kernel: out-of-bounds in function build_audio_procunit in sound/usb/mixer.c
Summary: CVE-2019-15927 kernel: out-of-bounds in function build_audio_procunit in soun...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2019-15927
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1759060 1809512 1809513 1809514 1809515 1809516
Blocks: 1759061
TreeView+ depends on / blocked
 
Reported: 2019-10-07 10:20 UTC by Dhananjay Arunesh
Modified: 2021-10-27 10:49 UTC (History)
42 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
An out-of-bounds flaw was found in the ALSA usb-audio subsystem in the Linux kernel. An array boundary check was needed to restrict the array size; failing this can cause an out-of-bound access problem. Data confidentiality and integrity, as well as system availability, are all threats with this vulnerability.
Clone Of:
Environment:
Last Closed: 2021-10-27 10:49:40 UTC


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Description Dhananjay Arunesh 2019-10-07 10:20:12 UTC
A vulnerability was found in build_audio_procunit in sound/usb/mixer.c in ALSA usb-audio subsystem for a local user,  while accessing an array (desc->baSourceID) a boundary check was needed to restrict the array size, failing this can cause an out-of-bound access problem.


Reference:
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.20.2
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f4351a199cc120ff9d59e06d02e8657d08e6cc46

Comment 1 Dhananjay Arunesh 2019-10-07 10:20:50 UTC
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1759060]

Comment 2 Justin M. Forbes 2019-10-07 14:23:41 UTC
This was fixed for Fedora in the 4.20.2 stable kernel updates.

Comment 4 Rohit Keshri 2020-03-03 09:38:36 UTC
Mitigation:

Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.


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