In Expat (aka libexpat) before 2.4.3, a left shift by 29 (or more) places in the storeAtts function in xmlparse.c can lead to realloc misbehavior (e.g., allocating too few bytes, or only freeing memory). CREATE(Triage):(User=admin) [CVE-2021-45960|https://nvd.nist.gov/vuln/detail/CVE-2021-45960]
