Vulnerability Details CVE-2021-46102
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";
Exploit prediction scoring system (EPSS) score
EPSS Score 0.005
EPSS Ranking 65.0%
CVSS Severity
CVSS v3 Score 7.5
CVSS v2 Score 5.0
References
- https://blocksecteam.medium.com/new-integer-overflow-bug-discovered-in-solana-rbpf-7729717159ee
- https://github.com/solana-labs/rbpf/blob/c14764850f0b83b58aa013248eaf6d65836c1218/src/elf.rs#L609-L630
- https://github.com/solana-labs/rbpf/pull/200
- https://github.com/solana-labs/rbpf/pull/236
- https://blocksecteam.medium.com/new-integer-overflow-bug-discovered-in-solana-rbpf-7729717159ee
- https://github.com/solana-labs/rbpf/blob/c14764850f0b83b58aa013248eaf6d65836c1218/src/elf.rs#L609-L630
- https://github.com/solana-labs/rbpf/pull/200
- https://github.com/solana-labs/rbpf/pull/236
Products affected by CVE-2021-46102
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cpe:2.3:a:solanalabs:rbpf:0.2.14
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cpe:2.3:a:solanalabs:rbpf:0.2.15
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cpe:2.3:a:solanalabs:rbpf:0.2.16