BugTraq
Secunia Research: libarchive "lha_read_file_header_1()" Out-Of-Bounds Memory Access Denial of Service Vulnerability Jan 30 2017 03:03PM
Secunia Research (remove-vuln secunia com)
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Secunia Research 2017/01/27

libarchive "lha_read_file_header_1()" Out-Of-Bounds Memory Access

Denial of Service Vulnerability

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Table of Contents

Affected Software....................................................1

Severity.............................................................2

Description of Vulnerability.........................................3

Solution.............................................................4

Time Table...........................................................5

Credits..............................................................6

References...........................................................7

About Flexera Software...............................................8

Verification.........................................................9

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1) Affected Software

* libarchive version 3.2.2.

Other versions may also be affected.

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2) Severity

Rating: Moderately critical

Impact: Denial of Service

Where: From remote

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3) Description of Vulnerability

Secunia Research has discovered a vulnerability in libarchive, which

can be exploited by malicious people to cause a DoS (Denial of

Service).

The vulnerability is caused due to an error in the

"lha_read_file_header_1()" function

(archive_read_support_format_lha.c), which can be exploited to trigger

an out-of-bounds read memory access via a specially crafted archive.

The vulnerability is confirmed in version 3.2.2. Other versions may

also be affected.

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4) Solution

Fixed in the source code repository.

https://github.com/libarchive/libarchive/commit/

98dcbbf0bf4854bf987557e55e55fff7abbf3ea9

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5) Time Table

2016/12/20 - Initial contact to request security contact.

2016/12/27 - Maintainer responds with security contacts.

2016/12/29 - Maintainers provided with the vulnerability details.

2017/01/11 - Request for status after no response.

2017/01/16 - Maintainers acknowledge the vulnerability and publish a

suggested fix in an unofficial source code repository.

2017/01/19 - Maintainers informed about the fixed released date of

Secunia Advisory set to 2017/01/23 due to the public

disclosure of the vulnerability.

2017/01/19 - Maintainers provide a patch in the official source

code repository.

2017/01/23 - Release of Secunia Advisory SA74169.

2017/01/27 - Public disclosure of Secunia Research Advisory.

2017/01/30 - Added CVE identifier.

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6) Credits

Discovered by Jakub Jirasek, Secunia Research at Flexera Software.

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7) References

The Common Vulnerabilities and Exposures (CVE) project has assigned

the CVE-2017-5601 identifier for the vulnerability.

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8) About Flexera Software

Flexera Software helps application producers and enterprises increase

application usage and the value they derive from their software.

http://www.flexerasoftware.com/enterprise/company/about/

Flexera Software delivers market-leading Software Vulnerability

Management solutions enabling enterprises to proactively identify and

remediate software vulnerabilities, effectively reducing the risk of

costly security breaches.

http://www.flexerasoftware.com/enterprise/products/

Flexera Software supports and contributes to the community in

several ways. We have always believed that reliable vulnerability

intelligence and tools to aid identifying and fixing vulnerabilities

should be freely available for consumers to ensure that users,

who care about their online privacy and security, can stay secure.

Only a few vendors address vulnerabilities in a proper way and help

users get updated and stay secure. End-users (whether private

individuals or businesses) are otherwise left largely alone, and

that is why back in 2002, Secunia Research started investigating,

coordinating disclosure and verifying software vulnerabilities.

In 2016, Secunia Research became a part of Flexera Software

and today our in-house software vulnerability research remains the

core of the Software Vulnerability Management products at

Flexera Software.

http://secunia.com/secunia_research/

The public Advisory database contains sufficient information for

researchers, security enthusiasts, and consumers to lookup individual

products and vulnerabilities and assess, whether they need to take

any actions to secure their systems or whether a given vulnerability

has already been discovered

http://secunia.com/advisories/

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9) Verification

Please verify this advisory by visiting the Secunia website:

http://secunia.com/secunia_research/2017-3/

Complete list of vulnerability reports published by Secunia Research:

http://secunia.com/secunia_research/

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