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Bug 1516235 - (CVE-2017-16645) CVE-2017-16645 kernel: Out-of-bounds read in drivers/input/misc/ims-pcu.c
CVE-2017-16645 kernel: Out-of-bounds read in drivers/input/misc/ims-pcu.c
Status: CLOSED NOTABUG
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=20171028,reported=2...
: Security
Depends On: 1516274
Blocks: 1516236
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Reported: 2017-11-22 05:38 EST by Andrej Nemec
Modified: 2018-02-26 14:59 EST (History)
45 users (show)

See Also:
Fixed In Version: kernel 4.14
Doc Type: If docs needed, set a value
Doc Text:
The ims_pcu_get_cdc_union_desc function in drivers/input/misc/ims-pcu.c in the Linux kernel, through 4.13.11, allows local users to cause a denial of service (ims_pcu_parse_cdc_data out-of-bounds read and system crash) or possibly have unspecified other impact via a crafted USB device.
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Clone Of:
Environment:
Last Closed: 2018-02-25 09:18:05 EST
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Regression: ---
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Documentation: ---
CRM:
Verified Versions:
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oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

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Description Andrej Nemec 2017-11-22 05:38:21 EST 
The ims_pcu_get_cdc_union_desc function in drivers/input/misc/ims-pcu.c in the Linux kernel through 4.13.11 allows local users to cause a denial of service (ims_pcu_parse_cdc_data out-of-bounds read and system crash) or possibly have unspecified other impact via a crafted USB device.

References:

https://groups.google.com/forum/#!msg/syzkaller/q6jjr1OhqO8/WcA99AVFBAAJ

http://seclists.org/oss-sec/2017/q4/392

An upstream patch:

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ea04efee7635c9120d015dcdeeeb6988130cb67a
Comment 1 Andrej Nemec 2017-11-22 06:50:40 EST 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1516274]
Comment 4 Vladis Dronov 2018-02-25 09:18:05 EST 
Statement:

This issue does not affect the Linux kernel packages as shipped with Red Hat Enterprise Linux 5, 6, 7, its real-time kernel, Red Hat Enterprise MRG 2, Red Hat Enterprise Linux 7 for ARM 64 and Red Hat Enterprise Linux 7 for Power 9 LE, as a code with the flaw is not present or is not built in the products listed.
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