CVE-2021-46102: Integer overflow in solana_rbpf
(updated )
From version 0.2.14 to 0.2.16 for Solana rBPF, function “relocate” in the file src/elf.rs has an integer overflow bug because the sym.st_value is read directly from ELF file without checking. If the sym.st_value is rather large, an integer overflow is triggered while calculating the variable “addr” via addr = (sym.st_value + refd_pa) as u64
References
- blocksecteam.medium.com/new-integer-overflow-bug-discovered-in-solana-rbpf-7729717159ee
- github.com/advisories/GHSA-xwqr-xmgg-j69q
- github.com/solana-labs/rbpf
- github.com/solana-labs/rbpf/blob/c14764850f0b83b58aa013248eaf6d65836c1218/src/elf.rs
- github.com/solana-labs/rbpf/pull/200
- github.com/solana-labs/rbpf/pull/236
- github.com/solana-labs/rbpf/releases/tag/v0.2.17
- nvd.nist.gov/vuln/detail/CVE-2021-46102
Code Behaviors & Features
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