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Bug 1580979 - (CVE-2017-18270) CVE-2017-18270 kernel: improper keyrings creation
CVE-2017-18270 kernel: improper keyrings creation
Status: NEW
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=20170918,reported=2...
: Security
Depends On: 1582352 1582353
Blocks: 1580980
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Reported: 2018-05-21 17:48 EDT by Laura Pardo
Modified: 2018-08-28 18:43 EDT (History)
48 users (show)

See Also:
Fixed In Version: kernel 4.13.5
Doc Type: If docs needed, set a value
Doc Text:
A flaw was found in the Linux kernel in the way a local user could create keyrings for other users via keyctl commands. This may allow an attacker to set unwanted defaults, a denial of service, or possibly leak keyring information between users.
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RHEL 7.3 requirements from Atomic Host:
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Description Laura Pardo 2018-05-21 17:48:31 EDT 
A flaw was found in the Linux kernel before 4.13.5, a local user could create keyrings for other users via keyctl commands. This may allow to set unwanted defaults or cause a denial of service.


References:
https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.5

Upstream patch:
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=237bbd29f7a049d310d907f4b2716a7feef9abf3 	
https://github.com/torvalds/linux/commit/237bbd29f7a049d310d907f4b2716a7feef9abf3
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