Bug 1694081 (CVE-2018-12182) - CVE-2018-12182 edk2: insufficient memory write in SMM service leads to privilege escalation
Summary: CVE-2018-12182 edk2: insufficient memory write in SMM service leads to privil...
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2018-12182
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: 1694086 1694085
Blocks: 1694083
TreeView+ depends on / blocked
 
Reported: 2019-03-29 13:24 UTC by Dhananjay Arunesh
Modified: 2019-09-29 15:10 UTC (History)
17 users (show)

Fixed In Version:
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Environment:
Last Closed: 2019-06-10 10:52:40 UTC
Embargoed:

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System ID Private Priority Status Summary Last Updated
TianoCore 1136 0 None None None 2019-08-01 19:37:04 UTC

Description Dhananjay Arunesh 2019-03-29 13:24:49 UTC 
Insufficient memory write check in SMM service for EDK II may allow an authenticated user to potentially enable escalation of privilege, information disclosure and/or denial of service via local access.

Reference:
https://edk2-docs.gitbooks.io/security-advisory/content/sw-smi-confused-deputy-smramsavestate_c.html
Comment 1 Dhananjay Arunesh 2019-03-29 13:35:03 UTC 
Created edk2 tracking bugs for this issue:

Affects: fedora-all [bug 1694085]
Comment 2 Dhananjay Arunesh 2019-03-29 13:35:56 UTC 
Created edk2 tracking bugs for this issue:

Affects: epel-all [bug 1694086]
Comment 3 Laszlo Ersek 2019-04-01 16:37:46 UTC 
Can you please work with the TianoCore Bugzilla InfoSec group so they open up TianoCore#1136 to the public? Thank you.
Comment 4 Dhananjay Arunesh 2019-04-02 12:12:37 UTC 
nullIn reply to comment #3:
> Can you please work with the TianoCore Bugzilla InfoSec group so they open
> up TianoCore#1136 to the public? Thank you.

This will be handled by analyst who takes this issue.
Comment 5 Riccardo Schirone 2019-04-09 13:58:21 UTC 
Upstream issue:
https://bugzilla.tianocore.org/show_bug.cgi?id=1136

Upstream proposed patch:
https://bugzilla.tianocore.org/attachment.cgi?id=213
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