type confusion in Sass::ParserState::ParserState(Sass::ParserState const&)
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I haven't actually spent much time on the bug, because it doesn't look super exploitable outside of a local DoS, but the attached PoC will crash sassc in the middle of libsass from latest git, trying to deref $0x8, which appears to be the value of some tag in a tagged union.
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阅读 HackerOne 原文 ↗作者 @richo · 版权归作者与 LibSass 所有