========================================================================== Ubuntu Security Notice USN-5227-3 October 24, 2022
pillow vulnerability ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 20.04 LTS - Ubuntu 18.04 LTS Summary: An incomplete fix was discovered in Pillow. Software Description: - pillow: Python Imaging Library Details: USN-5227-1 fixed vulnerabilities in Pillow. It was discovered that the fix for CVE-2022-22817 was incomplete. This update fixes the problem. Original advisory details: 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. (CVE-2021-23437) 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. (CVE-2021-34552) 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. (CVE-2022-22815) 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. (CVE-2022-22816) 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. (CVE-2022-22817) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 20.04 LTS: python3-pil 7.0.0-4ubuntu0.6 Ubuntu 18.04 LTS: python-pil 5.1.0-1ubuntu0.8 python3-pil 5.1.0-1ubuntu0.8 In general, a standard system update will make all the necessary changes. References: https://ubuntu.com/security/notices/USN-5227-3 https://ubuntu.com/security/notices/USN-5227-1 CVE-2022-22817 Package Information: https://launchpad.net/ubuntu/+source/pillow/7.0.0-4ubuntu0.6 https://launchpad.net/ubuntu/+source/pillow/5.1.0-1ubuntu0.8
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