========================================================================== Ubuntu Security Notice USN-7217-1 January 20, 2025
libpodofo vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 22.04 LTS - Ubuntu 20.04 LTS - Ubuntu 18.04 LTS - Ubuntu 16.04 LTS - Ubuntu 14.04 LTS Summary: Several security issues were fixed in PoDoFo. Software Description: - libpodofo: PDF manipulation library Details: It was discovered that the PoDoFo library could dereference a NULL pointer when getting the number of pages in a PDF. If a user or application were tricked into opening a crafted PDF file, an attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. (CVE-2018-11255) It was discovered that PoDoFo library incorrectly handled memory when computing an encryption key, which could lead to a buffer overflow. If a user or application were tricked into opening a crafted PDF file, an attacker could possibly use this issue to cause a denial of service. (CVE-2018-12983) It was discovered that the PoDoFo library incorrectly handled memory allocation. If a user or application were tricked into opening a crafted PDF file, an attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS and Ubuntu 22.04 LTS. (CVE-2018-20797) It was discovered that the PoDoFo library did not properly validate memcpy arguments. If a user or application were tricked into opening a crafted PDF file, an attacker could possibly use this issue to cause a denial of service or execute arbitrary code. This issue only affected Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. (CVE-2018-5308) It was discovered that the PoDoFo library incorrectly handled memory in the GetNextToken function, which could lead to a buffer overflow. If a user or application were tricked into opening a crafted PDF file, an attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 16.04 LTS. (CVE-2017-5886) It was discovered that the PoDoFo library could enter an infinite loop, which could lead to a stack overflow. If a user or application were tricked into opening a crafted PDF file, an attacker could possibly use this issue to cause a denial of service or execute arbitrary code. This issue only affected Ubuntu 20.04 LTS and Ubuntu 22.04 LTS. (CVE-2018-8002, CVE-2020-18971, CVE-2021-30471, CVE-2021-30470) It was discovered that the PoDoFo library incorrectly handled memory allocation due to nInitialSize not being validated. If a user or application were tricked into opening a crafted PDF file, an attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. (CVE-2019-10723) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 22.04 LTS libpodofo-utils 0.9.7+dfsg-3ubuntu0.1~esm1 Available with Ubuntu Pro libpodofo0.9.7 0.9.7+dfsg-3ubuntu0.1~esm1 Available with Ubuntu Pro Ubuntu 20.04 LTS libpodofo-utils 0.9.6+dfsg-5ubuntu0.1~esm1 Available with Ubuntu Pro libpodofo0.9.6 0.9.6+dfsg-5ubuntu0.1~esm1 Available with Ubuntu Pro Ubuntu 18.04 LTS libpodofo-utils 0.9.5-9ubuntu0.1~esm1 Available with Ubuntu Pro libpodofo0.9.5 0.9.5-9ubuntu0.1~esm1 Available with Ubuntu Pro Ubuntu 16.04 LTS libpodofo-utils 0.9.3-4ubuntu0.1~esm1 Available with Ubuntu Pro libpodofo0.9.3 0.9.3-4ubuntu0.1~esm1 Available with Ubuntu Pro Ubuntu 14.04 LTS libpodofo0.9.0 0.9.0-1.2ubuntu0.1~esm3 Available with Ubuntu Pro In general, a standard system update will make all the necessary changes. References: https://ubuntu.com/security/notices/USN-7217-1 CVE-2017-5886, CVE-2018-11255, CVE-2018-12983, CVE-2018-20797, CVE-2018-5308, CVE-2018-8002, CVE-2019-10723, CVE-2020-18971, CVE-2021-30470, CVE-2021-30471
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