Bug 1436629 (CVE-2017-7277) - CVE-2017-7277 kernel: Mishandling SCM_TIMESTAMPING_OPT_STATS feature causes out-of-bounds read
Summary: CVE-2017-7277 kernel: Mishandling SCM_TIMESTAMPING_OPT_STATS feature causes o...
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2017-7277
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1436661 1442032
Blocks: 1436633
TreeView+ depends on / blocked
 
Reported: 2017-03-28 10:57 UTC by Adam Mariš
Modified: 2021-02-17 02:24 UTC (History)
33 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
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.
Clone Of:
Environment:
Last Closed: 2017-04-13 11:21:03 UTC
Embargoed:

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System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHEA-2017:3163 0 normal SHIPPED_LIVE new packages: kernel-alt 2017-11-09 14:59:25 UTC

Description Adam Mariš 2017-03-28 10:57:59 UTC 
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 12:02:31 UTC 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1436661]
Comment 4 Vladis Dronov 2017-04-13 11:16:00 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 code where the flaw was found is not present in these products.
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