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Bug 1404655 - (CVE-2015-8964) CVE-2015-8964 kernel: tty: Prevent ldisc drivers from re-using stale tty fields
CVE-2015-8964 kernel: tty: Prevent ldisc drivers from re-using stale tty fields
Status: CLOSED WONTFIX
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=20151127,reported=2...
: Security
Depends On:
Blocks: 1395269
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Reported: 2016-12-14 06:21 EST by Vladis Dronov
Modified: 2017-03-27 01:11 EDT (History)
34 users (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
The tty_set_termios_ldisc() function in 'drivers/tty/tty_ldisc.c' in the Linux kernel before 4.5 allows local users to obtain sensitive information from kernel memory by reading a tty data structure.
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Clone Of:
Environment:
Last Closed: 2016-12-14 06:25:47 EST
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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 Vladis Dronov 2016-12-14 06:21:53 EST 
The tty_set_termios_ldisc() function in 'drivers/tty/tty_ldisc.c' in the Linux kernel before 4.5 allows local users to obtain sensitive information from kernel memory by reading a tty data structure.

References:

http://source.android.com/security/bulletin/2016-11-01.html

https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2015-8964

An Upstream patch:

https://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable.git/commit/?id=dd42bf1197144ede075a9d4793123f7689e164bc
Comment 3 Vladis Dronov 2016-12-14 06:25:47 EST 
Statement:

This issue affects the Linux kernel packages as shipped with Red Hat Enterprise Linux 5, 6, 7 and MRG-2. This has been rated as having Low security impact and is not currently planned to be addressed in future updates. For additional information, refer to the Red Hat Enterprise Linux Life Cycle: https://access.redhat.com/support/policy/updates/errata/.
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