CVE-2022-4292

A heap use-after-free flaw was found in Vim's did_set_spelllang() function of the spell.c file. This issue occurs because vim uses freed memory after SpellFileMissing autocmd uses bwipe. This could allows an attacker to trick a user into opening a specially crafted file, triggering a heap use-after-free issue 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.

For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/ and Red Hat Enterprise Linux Life Cycle & Updates Policy: https://access.redhat.com/support/policy/updates/errata/.

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.