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A Binary diff security update has been released for Gentoo Linux.![Diff Diff](https://live.staticflickr.com/5541/10048425375_661d49408b.jpg)
Linux Binary Diff Guidelines
![Gui Gui](https://www.tecmint.com/wp-content/uploads/2016/07/Kompare-Two-Files-in-Linux.png)
Linux Binary Compare Gui
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Gentoo Linux Security Advisory GLSA 202003-44
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https://security.gentoo.org/
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Severity: High
Title: Binary diff: Heap-based buffer overflow
Date: March 19, 2020
Bugs: #701848
ID: 202003-44
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Synopsis
A heap-based buffer overflow in Binary diff might allow remote
attackers to execute arbitrary code.
Background
bsdiff and bspatch are tools for building and applying patches to
binary files.
Affected packages
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Package / Vulnerable / Unaffected
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1 dev-util/bsdiff < 4.3-r4 >= 4.3-r4
Description
It was discovered that the implementation of bspatch did not check for
a negative value on numbers of bytes read from the diff and extra
streams.
Impact
A remote attacker could entice a user to apply a specially crafted
patch using bspatch, 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 Binary diff users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose '>=dev-util/bsdiff-4.3-r4'
References
[ 1 ] CVE-2014-9862
https://nvd.nist.gov/vuln/detail/CVE-2014-9862
Availability
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
https://security.gentoo.org/glsa/202003-44
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
[email protected] or alternatively, you may file a bug at
https://bugs.gentoo.org.
License
Copyright 2020 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