#VU79569 Out-of-bounds write in LibTIFF - CVE-2023-30086

Vulnerability identifier: #VU79569

Vulnerability risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-30086

CWE-ID: CWE-787

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 (DoS) attack.

The vulnerability exists due to a boundary error within the tiffcp() function in tiffcp.c. A remote attacker can pass specially crafted data to the application to trigger an out-of-bounds write and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

LibTIFF: 4.0 - 4.6.1

---

External links
https://gitlab.com/libtiff/libtiff/-/issues/538
https://security.netapp.com/advisory/ntap-20230616-0003/

---

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.