ZEBRA is a Zcash node written entirely in Rust. Prior to zebrad version 4.3.1 and prior to zebra-chain version 6.0.2, Orchard transactions contain a rk field which is a randomized validating key and also an elliptic curve point. The Zcash specification allows the field to be the identity (a "zero" value), however, the orchard crate which is used to verify Orchard proofs would panic when fed a rk with the identity value. Thus an attacker could send a crafted transaction that would make a Zebra node crash. This issue has been patched in zebrad version 4.3.1 and zebra-chain version 6.0.2.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:XZfnd Zebra Chain
APPZfnd< 6.0.2Zfnd Zebrad
APPZfnd< 4.3.1
Related vulnerabilities
Nieprawidłowa weryfikacja sygnatury w węźle ZEBRA (Zcash) — ryzyko rozszczepienia konsensusu
Błędne zliczanie sigops w Zebra powoduje split sieci Zcash
Błąd walidacji sighash w Zebra — możliwy consensus split z zcashd
Zdalne wywołanie paniki węzła Zebra przez spreparowaną transakcję V5
ZEBRA is a Zcash node written entirely in Rust. Prior to zebrad version 4.3.1 and zebra-consensus version 5.0....