Two heap-overflow vulnerabilities exist in openSUSE/libsolv libsolv through 13 Dec 2020 in the decisionmap variable via the resolve_dependencies function at src/solver.c (line 1940 & line 1995), which could cause a remote Denial of Service.
https://github.com/yangjiageng/PoC/blob/master/libsolv-PoCs/resolve_dependencies-1995
https://github.com/yangjiageng/PoC/blob/master/libsolv-PoCs/resolve_dependencies-1940