Bug 1067087 (CVE-2017-16648) - VUL-0: CVE-2017-16648: kernel: The dvb_frontend_free function allows local users to cause DoS (use-after-free and system crash)
Summary: VUL-0: CVE-2017-16648: kernel: The dvb_frontend_free function allows local us...
Status: RESOLVED UPSTREAM
Alias: CVE-2017-16648
Product: SUSE Security Incidents
Classification: Novell Products
Component: Incidents (show other bugs)
Version: unspecified
Hardware: Other openSUSE 42.2
: P3 - Medium : Normal
Target Milestone: ---
Assignee: Security Team bot
QA Contact: Security Team bot
URL: https://smash.suse.de/issue/194646/
Whiteboard: CVSSv3.1:SUSE:CVE-2017-16648:4.6:(AV...
Keywords:
Depends on:
Blocks:
 
Reported: 2017-11-08 07:36 UTC by Johannes Segitz
Modified: 2024-06-25 13:43 UTC (History)
3 users (show)

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

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Description Johannes Segitz 2017-11-08 07:36:25 UTC 
CVE-2017-16648

The dvb_frontend_free function in drivers/media/dvb-core/dvb_frontend.c in the
Linux kernel through 4.13.11 allows local users to cause a denial of service
(use-after-free and system crash) or possibly have unspecified other impact via
a crafted USB device. NOTE: the function was later renamed __dvb_frontend_free.

References:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2017-16648
https://patchwork.kernel.org/patch/10046189/
https://groups.google.com/d/msg/syzkaller/0HJQqTm0G_g/T931ItskBAAJ
Comment 2 Borislav Petkov 2017-11-24 19:27:47 UTC 
master: pushed
stable: pushed
SLE15: doesn't have ead666000a5f ("media: dvb_frontend: only use kref after
initialized") which this patch fixes. That commit came in in 4.14-rc6.

By the same logic, earlier trees don't have it either, so bouncing back.
Comment 3 Marcus Meissner 2018-02-09 07:48:02 UTC 
fixed