Bug 1404655 (CVE-2015-8964) - CVE-2015-8964 kernel: tty: Prevent ldisc drivers from re-using stale tty fields
Summary: CVE-2015-8964 kernel: tty: Prevent ldisc drivers from re-using stale tty fields
Keywords:
Status: CLOSED WONTFIX
Alias: CVE-2015-8964
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:
Blocks: 1395269
TreeView+ depends on / blocked
 
Reported: 2016-12-14 11:21 UTC by Vladis Dronov
Modified: 2021-02-17 02:52 UTC (History)
34 users (show)

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.
Clone Of:
Environment:
Last Closed: 2016-12-14 11:25:47 UTC
Embargoed:

Attachments (Terms of Use)

Description Vladis Dronov 2016-12-14 11:21:53 UTC 
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 11:25:47 UTC 
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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