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Bug 1455067 - (CVE-2010-5329) CVE-2010-5329 kernel: video_usercopy function uses count value of a v4l2_ext_controls data structure
CVE-2010-5329 kernel: video_usercopy function uses count value of a v4l2_ext_...
Status: CLOSED WONTFIX
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
low Severity low
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Assigned To: Red Hat Product Security
impact=low,public=20100712,reported=2...
: Security
Depends On:
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Reported: 2017-05-24 04:15 EDT by Andrej Nemec
Modified: 2017-05-24 20:30 EDT (History)
33 users (show)

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Last Closed: 2017-05-24 04:17:50 EDT
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Description Andrej Nemec 2017-05-24 04:15:05 EDT 
The video_usercopy function in drivers/media/video/v4l2-ioctl.c in the Linux kernel before 2.6.39 relies on the count value of a v4l2_ext_controls data structure to determine a kmalloc size, which might allow local users to cause a denial of service (memory consumption) via a large value.

Upstream patch:

https://github.com/torvalds/linux/commit/fc0a80798576f80ca10b3f6c9c7097f12fd1d64e
Comment 1 Andrej Nemec 2017-05-24 04:17:50 EDT 
Statement:

This issue did not affect the versions of the Linux kernel as shipped with Red Hat Enterprise Linux 7 and Red Hat Enterprise MRG. This issue affects the versions of the Linux kernel as shipped with Red Hat Enterprise Linux 5 and 6. Red Hat Product Security has rated this issue as having Low security impact. This issue is not currently planned to be addressed in future updates. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/.
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