Bug 1575119 (CVE-2018-10689)

Summary:	CVE-2018-10689 blktrace: buffer overflow in the dev_map_read function in btt/devmap.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:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	anprice, esandeen
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-08-06 13:18:48 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:	1575120, 1575121, 1580579
Bug Blocks:	1575122

Description Laura Pardo 2018-05-04 19:40:23 UTC

A flaw was found in blktrace (aka Block IO Tracing) 1.2.0, as used with the Linux kernel and Android, has a buffer overflow in the dev_map_read function in btt/devmap.c because the device and devno arrays are too small, as demonstrated by an invalid free when using the btt program with a crafted file.


References:
https://www.spinics.net/lists/linux-btrace/msg00847.html

Patch:
https://git.kernel.org/pub/scm/linux/kernel/git/axboe/blktrace.git/commit/?id=d61ff409cb4dda31386373d706ea0cfb1aaac5b7
http://git.kernel.dk/?p=blktrace.git;a=log;h=d61ff409cb4dda31386373d706ea0cfb1aaac5b7

Comment 1 Laura Pardo 2018-05-04 19:40:58 UTC

Created blktrace tracking bugs for this issue:

Affects: fedora-all [bug 1575120]

Comment 5 Scott Gayou 2018-05-21 21:13:21 UTC

Statement:

Red Hat Product Security has rated this issue as having a security impact of Low, and a future update may address this flaw.

Comment 6 errata-xmlrpc 2019-08-06 12:22:51 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2019:2162 https://access.redhat.com/errata/RHSA-2019:2162

Comment 7 Product Security DevOps Team 2019-08-06 13:18:48 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-2018-10689