Bug 1641458 – CVE-2017-5734 edk2: Privilege escalation via stack-based buffer overflow in MakeTable() function

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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...

Status:	NEW

Aliases:	CVE-2017-5734

Product:	Security Response
Classification:	Other
Component:	vulnerability (Show other bugs)
Sub Component:
Version:	unspecified
Hardware:	All Linux

Priority	medium Severity medium
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Assigned To:	Red Hat Product Security
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Whiteboard:	impact=moderate,public=20181016,repor...
Keywords:	Security

Depends On:	1641461 1641462 1641464
Blocks:	1641438
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Reported:	2018-10-22 02:19 EDT by Sam Fowler
Modified:	2018-10-22 02:20 EDT (History)
CC List:	15 users (show)

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Description Sam Fowler 2018-10-22 02:19:08 EDT

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 02:20:38 EDT

Created edk2 tracking bugs for this issue:

Affects: epel-all [bug 1641462]
Affects: fedora-all [bug 1641461]

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