Bug 1641458 (CVE-2017-5734) - CVE-2017-5734 edk2: Privilege escalation via stack-based buffer overflow in MakeTable() function
Summary: CVE-2017-5734 edk2: Privilege escalation via stack-based buffer overflow in M...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2017-5734
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: 1641462 1641461 1641464 1666586
Blocks: 1641438
TreeView+ depends on / blocked
 
Reported: 2018-10-22 06:19 UTC by Sam Fowler
Modified: 2021-02-16 22:53 UTC (History)
6 users (show)

Fixed In Version:
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Last Closed: 2019-08-06 13:20:16 UTC
Embargoed:

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System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2019:2125 0 None None None 2019-08-06 12:18:12 UTC

Description Sam Fowler 2018-10-22 06:19:08 UTC 
In EDK II, a vulnerability exists in BaseUefiDecompressLib.c, TianoCompress.c, and UEFI specification via a stack-based buffer overflow in the MakeTable() function. An authenticated attacker could exploit this via a crafted file to escalate privileges.


External Reference:

https://edk2-docs.gitbooks.io/security-advisory/content/edk-ii-tianocompress-bounds-checking-issues.html


Upstream Bug:

https://bugzilla.tianocore.org/show_bug.cgi?id=686
Comment 1 Sam Fowler 2018-10-22 06:20:38 UTC 
Created edk2 tracking bugs for this issue:

Affects: epel-all [bug 1641462]
Affects: fedora-all [bug 1641461]
Comment 4 errata-xmlrpc 2019-08-06 12:18:09 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2019:2125 https://access.redhat.com/errata/RHSA-2019:2125
Comment 5 Product Security DevOps Team 2019-08-06 13:20:16 UTC 
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2017-5734
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