CVE-2021-46102 Integer overflow in solana_rbpf
An integer overflow in the Solana rBPF library allows attackers to cause denial of service or potentially execute code via crafted ELF files.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2021-46102?
CVE-2021-46102 is a high-severity vulnerability in n/a, published on 27 Jan 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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";
Weakness: CWE-190
Which versions are affected by CVE-2021-46102?
2 open source packages ship an affected version, including solana_rbpf. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
solana_rbpf crates.io | From 0.2.14 | 0.2.17 |
solana_rbpf crates.io | From 0.2.14 | 0.2.17 |
Products include Solanalabs Rbpf.
How do I fix CVE-2021-46102?
Upgrade solana_rbpf to 0.2.17 or later.
Is CVE-2021-46102 being exploited?
There is no known exploitation of CVE-2021-46102 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-xwqr-xmgg-j69q.