========================================================================== Ubuntu Security Notice USN-5247-1 January 27, 2022 vim vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 21.10 - Ubuntu 20.04 LTS - Ubuntu 18.04 LTS Summary: Several security issues were fixed in Vim. Software Description: - vim: Vi IMproved - enhanced vi editor Details: It was discovered that vim incorrectly handled parsing of filenames in its search functionality. If a user was tricked into opening a specially crafted file, an attacker could crash the application, leading to a denial of service. This issue only affected Ubuntu 21.10. (CVE-2021-3973) It was discovered that vim incorrectly handled memory when opening and searching the contents of certain files. If a user was tricked into opening a specially crafted file, an attacker could crash the application, leading to a denial of service, or possibly achieve code execution with user privileges. This issue only affected Ubuntu 20.04 LTS and Ubuntu 21.10. (CVE-2021-3974) It was discovered that vim incorrectly handled memory when opening and editing certain files. If a user was tricked into opening a specially crafted file, an attacker could crash the application, leading to a denial of service, or possibly achieve code execution with user privileges. (CVE-2021-3984) It was discovered that vim incorrectly handled memory when opening and editing certain files. If a user was tricked into opening a specially crafted file, an attacker could crash the application, leading to a denial of service, or possibly achieve code execution with user privileges. (CVE-2021-4019) It was discovered that vim incorrectly handled memory when opening and editing certain files. If a user was tricked into opening a specially crafted file, an attacker could crash the application, leading to a denial of service, or possibly achieve code execution with user privileges.(CVE-2021-4069) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 21.10: vim 2:8.2.2434-3ubuntu3.2 Ubuntu 20.04 LTS: vim 2:8.1.2269-1ubuntu5.6 Ubuntu 18.04 LTS: vim 2:8.0.1453-1ubuntu1.8 In general, a standard system update will make all the necessary changes. References: https://ubuntu.com/security/notices/USN-5247-1 CVE-2021-3973, CVE-2021-3974, CVE-2021-3984, CVE-2021-4019, CVE-2021-4069 Package Information: https://launchpad.net/ubuntu/+source/vim/2:8.2.2434-3ubuntu3.2 https://launchpad.net/ubuntu/+source/vim/2:8.1.2269-1ubuntu5.6 https://launchpad.net/ubuntu/+source/vim/2:8.0.1453-1ubuntu1.8