#VU11189 Path traversal in Leptonica - CVE-2018-7442

Vulnerability identifier: #VU11189

Vulnerability risk: Low

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2018-7442

CWE-ID: CWE-22

Exploitation vector: Network

Exploit availability: No

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

Vendor: DanBloomberg

Description
The vulnerability allows a remote unauthenticated attacker to conduct path traversal attack on the target system.

The weakness exists in the gplotMakeOutput function due to insufficient validation of characters used in the gplot rootname argument. A remote attacker can trigger path traversal and gain access to potentially sensitive information.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Leptonica: 1.65 - 1.75.2

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External links
https://lists.debian.org/debian-lts/2018/02/msg00086.html

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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.