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Bug 1590205 - (CVE-2018-12233) CVE-2018-12233 kernel: Memory corruption in JFS setattr
CVE-2018-12233 kernel: Memory corruption in JFS setattr
Status: CLOSED NOTABUG
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=20180601,repor...
: Security
Depends On: 1590206 1590207
Blocks: 1590208
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Reported: 2018-06-12 04:30 EDT by Andrej Nemec
Modified: 2018-06-12 22:26 EDT (History)
44 users (show)

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Doc Text:
A memory corruption issue was found in the Linux kernel with a JFS file system. Two setxattr calls to the same file with different extended attribute names would trigger an overflow and a memory corruption.
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Last Closed: 2018-06-12 10:48:43 EDT
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oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
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Description Andrej Nemec 2018-06-12 04:30:00 EDT 
A memory corruption issue was found in the Linux kernel with a JFS file system. Two setxattr calls to the same file with different extended attribute names would trigger an overflow and a memory corruption.

References:

https://lkml.org/lkml/2018/6/1/829

https://marc.info/?t=152788652700001&r=1&w=2

A proposed patch:

https://marc.info/?l=linux-kernel&m=152814391530549&w=2
Comment 1 Andrej Nemec 2018-06-12 04:31:05 EDT 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1590207]
Comment 5 Vladis Dronov 2018-06-12 10:48:43 EDT 
Note:

Red Hat does not ship the JFS filesystem in any product, so no Red Hat products are vulnerable to this flaw.
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