Bug 1590205 (CVE-2018-12233) - CVE-2018-12233 kernel: Memory corruption in JFS setattr
Summary: CVE-2018-12233 kernel: Memory corruption in JFS setattr
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2018-12233
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1590206 1590207
Blocks: 1590208
TreeView+ depends on / blocked
 
Reported: 2018-06-12 08:30 UTC by Andrej Nemec
Modified: 2021-02-17 00:08 UTC (History)
44 users (show)

Fixed In Version:
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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.
Clone Of:
Environment:
Last Closed: 2018-06-12 14:48:43 UTC
Embargoed:

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Description Andrej Nemec 2018-06-12 08:30:00 UTC 
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 08:31:05 UTC 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1590207]
Comment 5 Vladis Dronov 2018-06-12 14:48:43 UTC 
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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