NULL Pointer Dereference in resolve_keysym in xkbcommon parser.y

CVE-2018-15864 · LOW Severity

AV:L/AC:L/AU:N/C:N/I:N/A:P

Unchecked NULL pointer usage in resolve_keysym in xkbcomp/parser.y in xkbcommon before 0.8.2 could be used by local attackers to crash (NULL pointer dereference) the xkbcommon parser by supplying a crafted keymap file, because a map access attempt can occur for a map that was never created.

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