Vulnerability identifier: #VU25021

Vulnerability risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-16865

CWE-ID: CWE-400

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 incorrect resource management issue when processing invalid images in Pillow. A remote attacker can trigger resource exhaustion with a specially crafted image file and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Pillow: 6.0.0 - 6.1.0

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External links
http://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/EMJBUZQGQ2Q7HXYCQVRLU7OXNC7CAWWU/
http://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LYDXD7EE4YAEVSTNIFZKNVPRVJX5ZOG3/
http://pillow.readthedocs.io/en/latest/releasenotes/6.2.0.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.