#VU38405 Buffer overflow in Liblouis - CVE-2017-13743

Vulnerability identifier: #VU38405

Vulnerability risk: Medium

CVSSv4.0: 4.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2017-13743

CWE-ID: CWE-119

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Liblouis
Universal components / Libraries / Libraries used by multiple products

Vendor: Liblouis

Description

The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.

There is a buffer overflow in Liblouis 3.2.0, triggered in the function _lou_showString() in utils.c, that will lead to a remote denial of service attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Liblouis: 3.2.0

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External links
https://www.securityfocus.com/bid/100607
https://access.redhat.com/errata/RHSA-2017:3111
https://bugzilla.redhat.com/show_bug.cgi?id=1484335

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.