Bug 1625424 (CVE-2018-16438)

Summary:	CVE-2018-16438 hdf5: out of bounds read in H5L_extern_query at H5Lexternal.c
Product:	[Other] Security Response	Reporter:	Laura Pardo <lpardo>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	abhgupta, anto.trande, apevec, c.david86, chrisw, dakingun, dbaker, hbrock, igor.raits, jjoyce, jokerman, jschluet, jslagle, lhh, lpeer, markmc, mburns, orion, rbryant, sclewis, slinaber, sthangav, tdecacqu, trankin
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:	An out of bounds read in H5L_extern_query at H5Lexternal.c was discovered in the HDF HDF5 1.8.20 library. Using a specially crafted file, an attacker could cause a denial of service condition due to inadequate bounds checking.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2021-10-25 22:15:48 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	1625427, 1625426, 1629505, 1629506, 1629507, 1629508, 1629509, 1629510
Bug Blocks:	1625428

Description Laura Pardo 2018-09-04 22:03:25 UTC

An issue was discovered in the HDF HDF5 1.8.20 library. There is an out of bounds read in H5L_extern_query at H5Lexternal.c.


References:
https://github.com/TeamSeri0us/pocs/tree/master/hdf5/h5stat

Comment 1 Laura Pardo 2018-09-04 22:05:02 UTC

Created hdf5 tracking bugs for this issue:

Affects: epel-all [bug 1625427]
Affects: fedora-all [bug 1625426]

Comment 2 James Hebden 2018-09-17 01:16:58 UTC

Reproduced in hdf5 package on all RHOSP editions, using the provided reproducer file from the linked repository (https://github.com/TeamSeri0us/pocs/tree/master/hdf5/h5stat)

h5stat H5L_extern_query\@H5Lexternal.c\:498-10___out-of-bounds-read
Filename: H5L_extern_query:498-10___out-of-bounds-read
Segmentation fault (core dumped)

No upstream patch or source code analysis has been provided or performed, the backtrace provided in the PoC repository is the current best analysis.