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Bug 1436629 - (CVE-2017-7277) CVE-2017-7277 kernel: Mishandling SCM_TIMESTAMPING_OPT_STATS feature causes out-of-bounds read
CVE-2017-7277 kernel: Mishandling SCM_TIMESTAMPING_OPT_STATS feature causes o...
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=20170318,reported=2...
: Security
Depends On: 1436661 1442032
Blocks: 1436633
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Reported: 2017-03-28 06:57 EDT by Adam Mariš
Modified: 2017-11-09 10:09 EST (History)
33 users (show)

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Doc Text:
The TCP stack in the Linux kernel through 4.10.6 mishandles the SCM_TIMESTAMPING_OPT_STATS feature, which allows local users to obtain sensitive information from the kernel's internal socket data structures or cause a denial of service (out-of-bounds read) via crafted system calls, related to net/core/skbuff.c and net/socket.c.
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Clone Of:
Environment:
Last Closed: 2017-04-13 07:21:03 EDT
Type: ---
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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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External Trackers
Tracker ID Priority Status Summary Last Updated
Red Hat Product Errata RHEA-2017:3163 normal SHIPPED_LIVE new packages: kernel-alt 2017-11-09 09:59:25 EST

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Description Adam Mariš 2017-03-28 06:57:59 EDT 
The TCP stack in the Linux kernel through 4.10.6 mishandles the SCM_TIMESTAMPING_OPT_STATS feature, which allows local users to obtain sensitive information from the kernel's internal socket data structures or cause a denial of service (out-of-bounds read) via crafted system calls, related to net/core/skbuff.c and net/socket.c.

Reference:

https://lkml.org/lkml/2017/3/15/485

Upstream patches:

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=8605330aac5a5785630aec8f64378a54891937cc

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=4ef1b2869447411ad3ef91ad7d4891a83c1a509a
Comment 1 Adam Mariš 2017-03-28 08:02:31 EDT 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1436661]
Comment 4 Vladis Dronov 2017-04-13 07:16:00 EDT 
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 code where the flaw was found is not present in these products.
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