CVE-2021-45960

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).

Date published : 2022-01-01

https://bugzilla.mozilla.org/show_bug.cgi?id=1217609

https://github.com/libexpat/libexpat/issues/531