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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.87%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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";
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 1.87% probability · 78th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-190
- Affected
- solanalabs/rbpf
- Source
- cve@mitre.org
References
- https://blocksecteam.medium.com/new-integer-overflow-bug-discovered-in-solana-rbpf-7729717159eeExploit, Third Party Advisory
- https://github.com/solana-labs/rbpf/blob/c14764850f0b83b58aa013248eaf6d65836c1218/src/elf.rs#L609-L630Exploit, Third Party Advisory
- https://github.com/solana-labs/rbpf/pull/200Patch, Third Party Advisory
- https://github.com/solana-labs/rbpf/pull/236Patch, Third Party Advisory
- https://blocksecteam.medium.com/new-integer-overflow-bug-discovered-in-solana-rbpf-7729717159eeExploit, Third Party Advisory
- https://github.com/solana-labs/rbpf/blob/c14764850f0b83b58aa013248eaf6d65836c1218/src/elf.rs#L609-L630Exploit, Third Party Advisory
- https://github.com/solana-labs/rbpf/pull/200Patch, Third Party Advisory
- https://github.com/solana-labs/rbpf/pull/236Patch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.