An issue was discovered in p11-kit 0.21.1 through 0.23.21. Multiple integer overflows have been discovered in the array allocations in the p11-kit library and the p11-kit list command, where overflow checks are missing before calling realloc or calloc.
https://www.debian.org/security/2021/dsa-4822
https://lists.debian.org/debian-lts-announce/2021/01/msg00002.html
https://github.com/p11-glue/p11-kit/security/advisories/GHSA-q4r3-hm6m-mvc2