CVE-2022-22817

PIL.ImageMath.eval en Pillow antes de la versión 9.0.0 permite la evaluación de expresiones arbitrarias, como las que utilizan el método exec de Python. También se puede utilizar una expresión lambda,

A flaw was found in python-pillow. The vulnerability occurs due to Improper Neutralization, leading to command injection. This flaw allows an attacker to externally-influenced input commands that modify the intended command.

USN-5227-1 fixed vulnerabilities in Pillow. It was discovered that the fix for CVE-2022-22817 was incomplete. This update fixes the problem. It was discovered that Pillow incorrectly handled certain image files. If a user or automated system were tricked into opening a specially-crafted file, a remote attacker could cause Pillow to hang, resulting in a denial of service. It was discovered that Pillow incorrectly handled certain image files. If a user or automated system were tricked into opening a specially-crafted file, a remote attacker could cause Pillow to crash, resulting in a denial of service. This issue ony affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, and Ubuntu 21.04. It was discovered that Pillow incorrectly handled certain image files. If a user or automated system were tricked into opening a specially-crafted file, a remote attacker could cause Pillow to crash, resulting in a denial of service, or possibly execute arbitrary code. It was discovered that Pillow incorrectly handled certain image files. If a user or automated system were tricked into opening a specially-crafted file, a remote attacker could cause Pillow to crash, resulting in a denial of service. It was discovered that Pillow incorrectly handled certain image files. If a user or automated system were tricked into opening a specially-crafted file, a remote attacker could cause Pillow to crash, resulting in a denial of service, or possibly execute arbitrary code.