Bug 1641450 – CVE-2017-5733 edk2: Privilege escalation via heap-based buffer overflow in MakeTable() function

Bugzilla will be upgraded to version 5.0. The upgrade date is tentatively scheduled for 2 December 2018, pending final testing and feedback.

Bug 1641450 - (CVE-2017-5733) CVE-2017-5733 edk2: Privilege escalation via heap-based buffer overflow in MakeTable() function

Summary:	CVE-2017-5733 edk2: Privilege escalation via heap-based buffer overflow in Ma...

Status:	NEW

Aliases:	CVE-2017-5733

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

Priority	medium Severity medium
Target Milestone:	---
Target Release:	---
Assigned To:	Red Hat Product Security
QA Contact:
Docs Contact:

URL:
Whiteboard:	impact=moderate,public=20181016,repor...
Keywords:	Security

Depends On:	1641451 1641452 1641453
Blocks:	1641438
	Show dependency tree / graph

Reported:	2018-10-22 02:07 EDT by Sam Fowler
Modified:	2018-10-22 02:08 EDT (History)
CC List:	15 users (show)

See Also:
Fixed In Version:
Doc Type:	If docs needed, set a value
Doc Text:
Story Points:	---
Clone Of:
Environment:
Last Closed:
Type:	---
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

Attachments	(Terms of Use)
Add an attachment (proposed patch, testcase, etc.)

Groups: None (edit)

Description Sam Fowler 2018-10-22 02:07:23 EDT

In EDK II, a vulnerability exists in BaseUefiDecompressLib.c, TianoCompress.c, and UEFI specification via a heap-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 02:08:29 EDT

Created edk2 tracking bugs for this issue:

Affects: epel-all [bug 1641452]
Affects: fedora-all [bug 1641451]

Note You need to log in before you can comment on or make changes to this bug.