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Bug 1428907 - (CVE-2017-6353) CVE-2017-6353 kernel: Possible double free in stcp_sendmsg() (incorrect fix for CVE-2017-5986)
CVE-2017-6353 kernel: Possible double free in stcp_sendmsg() (incorrect fix f...
Status: CLOSED NOTABUG
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=20170223,repor...
: Security
Depends On: 1428910 1429496 1429497 1459305
Blocks: 1420295
  Show dependency treegraph
 
Reported: 2017-03-03 10:13 EST by Adam Mariš
Modified: 2017-06-06 14:25 EDT (History)
34 users (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
It was found that the code in net/sctp/socket.c in the Linux kernel through 4.10.1 does not properly restrict association peel-off operations during certain wait states, which allows local users to cause a denial of service (invalid unlock and double free) via a multithreaded application. This vulnerability was introduced by CVE-2017-5986 fix (commit 2dcab5984841).
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Last Closed: 2017-03-06 09:03:59 EST
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RHEL 7.3 requirements from Atomic Host:
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Description Adam Mariš 2017-03-03 10:13:51 EST
net/sctp/socket.c in the Linux kernel through 4.10.1 does not properly restrict association peel-off operations during certain wait states, which allows local users to cause a denial of service (invalid unlock and double free) via a multithreaded application.

This vulnerability was introduced by CVE-2017-5986 fix (commit 2dcab5984841).

Upstream patch:

https://github.com/torvalds/linux/commit/dfcb9f4f99f1e9a49e43398a7bfbf56927544af1
Comment 1 Adam Mariš 2017-03-03 10:15:13 EST
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1428910]
Comment 4 Vladis Dronov 2017-03-06 09:03:59 EST
Statement:

This issue does not affect the Linux kernel packages as shipped with Red Hat Enterprise Linux 5, 6, 7 and MRG-2, as the problem code is not presented in the products listed.
Comment 5 Fedora Update System 2017-03-11 06:51:13 EST
kernel-4.9.13-101.fc24 has been pushed to the Fedora 24 stable repository. If problems still persist, please make note of it in this bug report.

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