solana-labs/rbpf · Security
Integer overflow in solana_rbpf
- GHSA ID
- GHSA-xwqr-xmgg-j69q
- CVE ID
- CVE-2021-46102
- Severity
- high
- Published
- Updated
- CVSS
- 7.5 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CVSS v3
- 7.5 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Description
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
CWEs
- CWE-190 · Integer Overflow or Wraparound
References
- https://nvd.nist.gov/vuln/detail/CVE-2021-46102 ↗
- 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/releases/tag/v0.2.17 ↗
- https://github.com/advisories/GHSA-xwqr-xmgg-j69q ↗