glibc is vulnerable to buffer overflow. The vulnerability exists due to a memory corruption when the size of the buffer is exactly 1 which allows an attacker to control the input buffer and size passed to getcwd() in a setuid program.
access.redhat.com/errata/RHSA-2022:0896
access.redhat.com/security/cve/CVE-2021-3999
access.redhat.com/security/updates/classification/#moderate
bugzilla.redhat.com/show_bug.cgi?id=2024637
lists.debian.org/debian-lts-announce/2022/10/msg00021.html
security-tracker.debian.org/tracker/CVE-2021-3999
security.netapp.com/advisory/ntap-20221104-0001/
sourceware.org/bugzilla/show_bug.cgi?id=28769
sourceware.org/git/gitweb.cgi?p=glibc.git%3Bh=23e0e8f5f1fb5ed150253d986ecccdc90c2dcd5e
sourceware.org/git/gitweb.cgi?p=glibc.git;h=23e0e8f5f1fb5ed150253d986ecccdc90c2dcd5e
www.openwall.com/lists/oss-security/2022/01/24/4