CVE-2022-2522

A heap buffer overflow vulnerability was found in vim's ins_compl_infercase_gettext() function of the src/insexpand.c file. This flaw occurs when vim tries to access uninitialized memory when completing a long line. This flaw allows an attacker to trick a user into opening a specially crafted file, triggering a heap-based buffer overflow that causes an application to crash, possibly executing code and corrupting memory.

Red Hat Product Security has rated this issue as having a Low security impact because the "victim" has to run an untrusted file IN SCRIPT MODE. Someone who is running untrusted files in script mode is equivalent to someone just taking a random python script and running it.

For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Untrusted vim scripts with -s [scriptin] are not recommended to run.