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CVE-2023-48706

Status Candidate

Overview

Vim is a UNIX editor that, prior to version 9.0.2121, has a heap-use-after-free vulnerability. When executing a `:s` command for the very first time and using a sub-replace-special atom inside the substitution part, it is possible that the recursive `:s` call causes free-ing of memory which may later then be accessed by the initial `:s` command. The user must intentionally execute the payload and the whole process is a bit tricky to do since it seems to work only reliably for the very first :s command. It may also cause a crash of Vim. Version 9.0.2121 contains a fix for this issue.

Related Files

Ubuntu Security Notice USN-6557-1
Posted Dec 15, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6557-1 - It was discovered that Vim could be made to dereference invalid memory. 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. It was discovered that Vim could be made to recurse infinitely. 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, Ubuntu 20.04 LTS, and Ubuntu 22.04 LTS.

tags | advisory, denial of service
systems | linux, ubuntu
advisories | CVE-2022-1725, CVE-2022-1771, CVE-2022-1886, CVE-2022-2000, CVE-2022-2042, CVE-2023-48232, CVE-2023-48236, CVE-2023-48237, CVE-2023-48706
SHA-256 | 872f33dc2b7bc88b8c7bb037d8cce3aa5d34706dc69f05eec595485cb8f8d733
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