Bug 1153166 – VUL-1: CVE-2019-17263: libfwsi: heap-based buffer over-read in libfwsi_extension_block_copy_from_byte_stream in libfwsi_extension_block.c

Bug 1153166 - (CVE-2019-17263) VUL-1: CVE-2019-17263: libfwsi: heap-based buffer over-read in libfwsi_extension_block_copy_from_byte_stream in libfwsi_extension_block.c

(CVE-2019-17263)
Summary:	VUL-1: CVE-2019-17263: libfwsi: heap-based buffer over-read in libfwsi_extens...

Status:	NEW

Classification:	openSUSE
Product:	openSUSE Distribution
Classification:	openSUSE
Component:	Basesystem
Version:	Leap 15.1
Hardware:	Other Other

Priority:	P4 - Low Severity: Minor (vote)
Target Milestone:	---
Assigned To:	Greg Freemyer
QA Contact:	Security Team bot

URL:	https://smash.suse.de/issue/244245/
Whiteboard:
Keywords:

Depends on:
Blocks:
	Show dependency tree / graph

Create test case

Clone This Bug

Reported:	2019-10-07 06:59 UTC by Alexander Bergmann
Modified:	2019-10-07 22:13 UTC (History)
CC List:	0 users

See Also:
Found By:	Security Response Team
Services Priority:
Business Priority:
Blocker:	---
Marketing QA Status:	---
IT Deployment:	---

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

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

Description Alexander Bergmann 2019-10-07 06:59:01 UTC

CVE-2019-17263

In libyal libfwsi before 20191006, libfwsi_extension_block_copy_from_byte_stream
in libfwsi_extension_block.c has a heap-based buffer over-read because rejection
of an unsupported size only considers values less than 6, even though values of
6 and 7 are also unsupported.

References:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2019-17263
http://www.cvedetails.com/cve/CVE-2019-17263/
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-17263
https://github.com/libyal/libfwsi/issues/13
https://github.com/libyal/libfwsi/compare/20181227...20191006