#VU69497 Input validation error in Pillow - CVE-2022-24303

Vulnerability identifier: #VU69497

Vulnerability risk: Medium

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

CVE-ID: CVE-2022-24303

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

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

Vendor: Alex Clark and Contributors

Description

The vulnerability allows a remote attacker to delete arbitrary files on the system.

The vulnerability exists due to input validation error when processing spaces in path to the temporary directory on Linux or macOS. A remote attacker can pass a specially crafted file to the application and delete arbitrary files on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Pillow: 9.0.0

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External links
https://pillow.readthedocs.io/en/stable/releasenotes/9.0.1.html#security
https://github.com/python-pillow/Pillow/pull/3450
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/W4ZUXPKEX72O3E5IHBPVY5ZCPMJ4GHHV/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XR6UP2XONXOVXI4446VY72R63YRO2YTP/

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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.