Bug 1428907 (CVE-2017-6353) - CVE-2017-6353 kernel: Possible double free in stcp_sendmsg() (incorrect fix for CVE-2017-5986)
Summary: CVE-2017-6353 kernel: Possible double free in stcp_sendmsg() (incorrect fix f...
Status: CLOSED NOTABUG
Alias: CVE-2017-6353
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
(Show other bugs)
Version: unspecified
Hardware: All Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard: impact=moderate,public=20170223,repor...
Keywords: Security
Depends On: 1428910 1429496 1429497 1459305
Blocks: 1420295
TreeView+ depends on / blocked
 
Reported: 2017-03-03 15:13 UTC by Adam Mariš
Modified: 2017-06-06 18:25 UTC (History)
34 users (show)

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).
Story Points: ---
Clone Of:
Environment:
Last Closed: 2017-03-06 14:03:59 UTC
Type: ---
Regression: ---
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CRM:
Verified Versions:
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oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---


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Description Adam Mariš 2017-03-03 15:13:51 UTC
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 15:15:13 UTC
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1428910]

Comment 4 Vladis Dronov 2017-03-06 14:03:59 UTC
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 11:51:13 UTC
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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