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Test your applicationsUpgrade RHEL:9 glibc-langpack-quz to version 0:2.34-60.el9_2.14 or higher.
This issue was patched in RHSA-2024:3411.
Note: Versions mentioned in the description apply only to the upstream glibc-langpack-quz package and not the glibc-langpack-quz package as distributed by RHEL.
See How to fix? for RHEL:9 relevant fixed versions and status.
The iconv() function in the GNU C Library versions 2.39 and older may overflow the output buffer passed to it by up to 4 bytes when converting strings to the ISO-2022-CN-EXT character set, which may be used to crash an application or overwrite a neighbouring variable.