Home / mailings [gentoo-announce] [ GLSA 202107-15 ] blktrace: Buffer overflow
Posted on 08 July 2021
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Gentoo Linux Security Advisory GLSA 202107-15
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https://security.gentoo.org/
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Severity: Normal
Title: blktrace: Buffer overflow
Date: July 08, 2021
Bugs: #655146
ID: 202107-15
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Synopsis
========
A buffer overflow in blktrace might allow arbitrary code execution.
Background
==========
blktrace shows detailed information about what is happening on a block
device IO queue.
Affected packages
=================
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Package / Vulnerable / Unaffected
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1 sys-block/blktrace < 1.2.0_p20210419122502>= 1.2.0_p202104191225=02
Description
===========
A crafted file could cause a buffer overflow in the 'dev_map_read'
function because the device and devno arrays are too small.
Impact
======
A remote attacker could entice a user to open a specially crafted file
using blktrace, possibly resulting in execution of arbitrary code with
the privileges of the process or a Denial of Service condition.
Workaround
==========
There is no known workaround at this time.
Resolution
==========
All blktrace users should upgrade to the latest version:
# emerge --sync
# emerge -a --oneshot -v ">=sys-block/blktrace-1.2.0_p20210419122502"
References
==========
[ 1 ] CVE-2018-10689
https://nvd.nist.gov/vuln/detail/CVE-2018-10689
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
https://security.gentoo.org/glsa/202107-15
Concerns?
=========
Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users' machines is of utmost
importance to us. Any security concerns should be addressed to
security@gentoo.org or alternatively, you may file a bug at
https://bugs.gentoo.org.
License
=======
Copyright 2021 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).
The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.
https://creativecommons.org/licenses/by-sa/2.5
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