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Bug 1640598 - (CVE-2018-18386) CVE-2018-18386 kernel: Type confusion in drivers/tty/n_tty.c allows for a denial of service
CVE-2018-18386 kernel: Type confusion in drivers/tty/n_tty.c allows for a den...
Status: NEW
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
medium Severity medium
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Assigned To: Red Hat Product Security
impact=moderate,public=20171220,repor...
: Security
Depends On:
Blocks: 1640599
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Reported: 2018-10-18 07:40 EDT by Andrej Nemec
Modified: 2018-10-23 01:43 EDT (History)
48 users (show)

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Description Andrej Nemec 2018-10-18 07:40:55 EDT 
drivers/tty/n_tty.c in the Linux kernel before 4.14.11 allows local attackers (who are able to access pseudo terminals) to hang/block further usage of any pseudo terminal devices due to an EXTPROC versus ICANON confusion in TIOCINQ.

Upstream patch:

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=966031f340185eddd05affcf72b740549f056348
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