Ubuntu Security Update USN-6154-1: Vim vulnerabilities

[LinuxBot]

It was discovered that Vim was using uninitialized memory when fuzzy matching, which could lead to invalid memory access. An attacker could possibly use this issue to cause a denial of service or execute arbitrary code. This issue only affected Ubuntu 22.04 LTS, Ubuntu 22.10 and Ubuntu 23.04. (CVE-2023-2426) It was discovered that Vim was not properly performing bounds checks when processing register contents, which could lead to a NULL pointer dereference. An attacker could possibly use this issue to cause a denial of service or execute arbitrary code. (CVE-2023-2609) It was discovered that Vim was not properly limiting the length of substitution expression strings, which could lead to excessive memory consumption. An attacker could possibly use this issue to cause a denial of service. (CVE-2023-2610)

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