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Has anyone done an analysis of the bug in the backdoor that caused valgrind errors and slowness in SSH which eventually exposed it?
by nonane 2y ago
Has anyone done an analysis of the bug in the backdoor that caused valgrind errors and slowness in SSH which eventually exposed it?
- lyu07282 2y agoInvalid memory write apparently: https://www.mail-archive.com/valgrind-users@lists.sourceforge.net/msg07546.html https://www.mail-archive.com/valgrind-users@lists.sourceforg... The valgrind "fix" was to disable ifunc which disabled the backdoor so the errors went away. The slowness derived from all the symbol and instruction lookups it did afaik
- itomato 2y agoOxide and Friends interviewed Andres Freund for their show on Wednesday where he discussed the discovery, including the slowness from all the symbol translations https://open.spotify.com/episode/0C04JlCpMFe07C1XCswbZ9?si=B85xmm_IT3OWzexvzu2i6w https://open.spotify.com/episode/0C04JlCpMFe07C1XCswbZ9?si=B...