The nameserver caching daemon (nscd) in the GNU C Library (aka glibc or libc6) 2.29 through 2.33, when processing a request for netgroup lookup, may crash due to a double-free, potentially resulting in degraded service or Denial of Service on the local system. This is related to netgroupcache.c. CREATE(Triage):(User=admin) CVE-2021-27645 (https://nvd.nist.gov/vuln/detail/CVE-2021-27645)
