Bug 1046601 - (CVE-2017-9985) VUL-1: CVE-2017-9985: kernel: DoS in snd_msndmidi_input_read function in sound/isa/msnd/msnd_midi.c
(CVE-2017-9985)
VUL-1: CVE-2017-9985: kernel: DoS in snd_msndmidi_input_read function in soun...
Status: RESOLVED WONTFIX
Classification: Novell Products
Product: SUSE Security Incidents
Classification: Novell Products
Component: Incidents
unspecified
Other Other
: P4 - Low : Normal
: ---
Assigned To: Security Team bot
Security Team bot
https://smash.suse.de/issue/187397/
CVSSv2:NVD:CVE-2017-9985:7.2:(AV:L/AC...
:
Depends on:
Blocks:
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Reported: 2017-06-29 09:00 UTC by Alexander Bergmann
Modified: 2019-05-29 07:48 UTC (History)
3 users (show)

See Also:
Found By: Security Response Team
Services Priority:
Business Priority:
Blocker: ---
Marketing QA Status: ---
IT Deployment: ---


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Description Alexander Bergmann 2017-06-29 09:00:18 UTC
CVE-2017-9985

The snd_msndmidi_input_read function in sound/isa/msnd/msnd_midi.c in the Linux
kernel through 4.11.7 allows local users to cause a denial of service
(over-boundary access) or possibly have unspecified other impact by changing the
value of a message queue head pointer between two kernel reads of that value,
aka a "double fetch" vulnerability.

References:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2017-9985
http://people.canonical.com/~ubuntu-security/cve/2017/CVE-2017-9985.html
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-9985
https://bugzilla.kernel.org/show_bug.cgi?id=196133
Comment 1 Takashi Iwai 2017-06-29 09:27:25 UTC
It's a legacy ISA driver, and it's not supported.  Thus it affects at most up to SLE11 Desktop.  SLE12+ aren't affected.
Comment 2 Takashi Iwai 2017-06-30 09:39:09 UTC
IMO, this is no real security problem.  See bsc#1046599.
Comment 3 Takashi Iwai 2017-07-06 09:45:23 UTC
So I push back this as WONTFIX as a non-security issue.

I'm going to address it in the upstream, but it's not worth for backporting.
Comment 4 Marcus Meissner 2017-07-13 11:26:46 UTC
ok