#VU13266 Stack-based buffer overflow in Liblouis


Published: 2018-06-12

Vulnerability identifier: #VU13266

Vulnerability risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C]

CVE-ID: CVE-2018-11683

CWE-ID: CWE-121

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 attacker to cause DoS condition on the target system.

The vulnerability exists due to stack-based buffer overflow in the parseChars function, as defined in the compileTranslationTable.c source code file, during table parsing operations. A remote attacker can send a specially crafted request that submits malicious input, trigger memory corruption and cause the service to crash.

Mitigation
Update to version 3.6.0.

Vulnerable software versions

Liblouis: 3.5.0


External links
http://github.com/liblouis/liblouis/issues/591


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. However, proof of concept for this vulnerability is available.


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