Vulnerability identifier: #VU79327

Vulnerability risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-3618

CWE-ID: CWE-120

Exploitation vector: Network

Exploit availability: No

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

Vendor: LibTIFF

Description

The vulnerability allows a remote attacker to perform a denial of service attack.

The vulnerability exists due to buffer overflow in the Fax3Encode() function in libtiff/tif_fax3.c. A remote unauthenticated attacker can trick the victim into opening a specially crafted file and perform a denial of service attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

LibTIFF: 4.5.0

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External links
http://bugzilla.redhat.com/show_bug.cgi?id=2215865
http://access.redhat.com/security/cve/CVE-2023-3618
http://lists.debian.org/debian-lts-announce/2023/07/msg00034.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.