#VU69499 Resource exhaustion in Pillow - CVE-2022-45199

Vulnerability identifier: #VU69499

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-2022-45199

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 application does not properly control consumption of internal resources within the TiffImagePlugin.py when setting up the context for image decoding. A remote attacker can trigger resource exhaustion via a large value in the SAMPLESPERPIXEL tag and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Pillow: 9.2.0

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External links
https://github.com/python-pillow/Pillow/pull/6700
https://bugs.gentoo.org/878769
https://github.com/python-pillow/Pillow/releases/tag/9.3.0
https://github.com/python-pillow/Pillow/commit/2444cddab2f83f28687c7c20871574acbb6dbcf3

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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.