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Ubuntu 20.04 LTS USN-5613-2: Moderate Vim Regression Fixed

USN-5613-1 caused a regression in Vim.. =========================================================================Ubuntu Security Notice USN-5613-2 September 19, 2022 vim regression ========================================================================= A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 20.04 LTS Summary: USN-5613-1 caused a regression in Vim. Software Description: - vim: Vi IMproved - enhanced vi editor Details: USN-5613-1 fixed vulnerabilities in Vim. Unfortunately that update failed to include binary packages for some architectures. This update fixes that regression. We apologize for the inconvenience. Original advisory details: It was discovered that Vim was not properly performing bounds checks when executing spell suggestion commands. An attacker could possibly use this issue to cause a denial of service or execute arbitrary code. (CVE-2022-0943) It was discovered that Vim was using freed memory when dealing with regular expressions through its old regular expression engine. If a user were tricked into opening a specially crafted file, an attacker could crash the application, leading to a denial of service, or possibly achieve code execution. (CVE-2022-1154) It was discovered that Vim was not properly performing checks on name of lambda functions. An attacker could possibly use this issue to cause a denial of service. This issue affected only Ubuntu 22.04 LTS. (CVE-2022-1420) It was discovered that Vim was incorrectly performing bounds checks when processing invalid commands with composing characters in Ex mode. An attacker could possibly use this issue to cause a denial of service or execute arbitrary code. (CVE-2022-1616) It was discovered that Vim was not properly processing latin1 data when issuing Ex commands. An attacker could possibly use this issue to cause a denial of service or execute arbitrary code. (CVE-2022-1619) It was discovered that Vim was notproperly performing memory management when dealing with invalid regular expression patterns in buffers. An attacker could possibly use this issue to cause a denial of service. (CVE-2022-1620) It was discovered that Vim was not properly processing invalid bytes when performing spell check operations. An attacker could possibly use this issue to cause a denial of service or execute arbitrary code. (CVE-2022-1621) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 20.04 LTS: vim 2:8.1.2269-1ubuntu5.9 In general, a standard system update will make all the necessary changes. References: https://ubuntu.com/security/notices/USN-5613-2 https://ubuntu.com/security/notices/USN-5613-1 CVE-2022-0943, CVE-2022-1154, CVE-2022-1420, CVE-2022-1616, CVE-2022-1619, CVE-2022-1620, CVE-2022-1621, https://bugs.launchpad.net/ubuntu/+source/vim/+bug/1989973 Package Information: https://launchpad.net/ubuntu/+source/vim/2:8.1.2269-1ubuntu5.9 . Ubuntu addressed a minor issue in Vim related to USN-5613-1 on September 19, 2022, affecting Ubuntu 20.04 LTS and its derivatives.. Vim Regression, Ubuntu Security Notice, Software Update. . LinuxSecurity.com Team

Sep 19, 2022 Ubuntu