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Bug 1530273 - (CVE-2017-17856) CVE-2017-17856 kernel: bpf/verifier.c allows local users to cause a denial of service by leveraging the lack of stack-pointer alignment enforcement
CVE-2017-17856 kernel: bpf/verifier.c allows local users to cause a denial of...
Status: NEW
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
medium Severity medium
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Assigned To: Red Hat Product Security
impact=moderate,public=20171219,repor...
: Security
Depends On: 1530316 1530279
Blocks: 1528364
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Reported: 2018-01-02 07:32 EST by Adam Mariš
Modified: 2018-08-28 18:31 EDT (History)
43 users (show)

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Fixed In Version: kernel 4.15
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Description Adam Mariš 2018-01-02 07:32:12 EST 
kernel/bpf/verifier.c in the Linux kernel through 4.14.8 allows local users to cause a denial of service (memory corruption) or possibly have unspecified other impact by leveraging the lack of stack-pointer alignment enforcement.

Upstream patch:

https://github.com/torvalds/linux/commit/a5ec6ae161d72f01411169a938fa5f8baea16e8f

References:

http://www.openwall.com/lists/oss-security/2017/12/21/2
Comment 1 Adam Mariš 2018-01-02 07:42:39 EST 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1530279]
Comment 3 Prasad J Pandit 2018-01-18 00:34:51 EST 
Statement:

This issue does not affect the versions of the kernel package as shipped with Red Hat Enterprise Linux 5, 6, 7 and Red Hat Enterprise MRG 2.
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