Vulnerability identifier: #VU69498

Vulnerability risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-45198

CWE-ID: CWE-399

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 perform a denial of service (DoS) attack.

The vulnerability exists due to improper management of internal resources when handing highly compressed GIF data. A remote attacker can pass specially crafted GIF file to the application and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Pillow: 1.0 - 9.1.1

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External links
http://github.com/python-pillow/Pillow/commit/11918eac0628ec8ac0812670d9838361ead2d6a4
http://github.com/python-pillow/Pillow/pull/6402
http://github.com/python-pillow/Pillow/releases/tag/9.2.0
http://pillow.readthedocs.io/en/stable/releasenotes/9.2.0.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.