Bug 1575119 – CVE-2018-10689 blktrace: buffer overflow in the dev_map_read function in btt/devmap.c

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Bug 1575119 - (CVE-2018-10689) CVE-2018-10689 blktrace: buffer overflow in the dev_map_read function in btt/devmap.c

Summary:	CVE-2018-10689 blktrace: buffer overflow in the dev_map_read function in btt/...

Status:	NEW

Aliases:	CVE-2018-10689

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

Priority	low Severity low
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Assigned To:	Red Hat Product Security
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Whiteboard:	impact=low,public=20180502,reported=2...
Keywords:	Security

Depends On:	1575121 1580579 1575120
Blocks:	1575122
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Reported:	2018-05-04 15:40 EDT by Laura Pardo
Modified:	2018-05-21 17:14 EDT (History)
CC List:	2 users (show)

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Description Laura Pardo 2018-05-04 15:40:23 EDT

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 15:40:58 EDT

Created blktrace tracking bugs for this issue:

Affects: fedora-all [bug 1575120]

Comment 5 Scott Gayou 2018-05-21 17:13:21 EDT

Statement:

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

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