NULL Pointer Dereference in ExprResolveLhs in xkbcommon before 0.8.2

CVE-2018-15859 · LOW Severity

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

Unchecked NULL pointer usage when parsing invalid atoms in ExprResolveLhs in xkbcomp/expr.c 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 lookup failures are mishandled.

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