#VU11225 Race condition in Leptonica - CVE-2018-7441

Vulnerability identifier: #VU11225

Vulnerability risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2018-7441

CWE-ID: CWE-362

Exploitation vector: Local

Exploit availability: No

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

Vendor: DanBloomberg

Description
The vulnerability allows a local attacker to overwrite arbitrary files on the target system.

The weakness exists due to hardcoded /tmp pathnames. A local attacker can create a file in advance, trigger race condition and overwrite arbitrary files.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Leptonica: 1.65 - 1.75.3

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External links
https://bugzilla.redhat.com/show_bug.cgi?id=1549742

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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