CVE-2019-25003 libsecp256k1 contains side-channel timing attack
Attackers can exploit a timing side-channel in the libsecp256k1 Rust crate to obtain sensitive cryptographic information.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2019-25003?
CVE-2019-25003 is a high-severity vulnerability in n/a, published on 31 Dec 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An issue was discovered in the libsecp256k1 crate before 0.3.1 for Rust. Scalar::check_overflow allows a timing side-channel attack; consequently, attackers can obtain sensitive information.
Which versions are affected by CVE-2019-25003?
3 open source packages ship an affected version, including libsecp256k1. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
libsecp256k1 crates.io | All versions | 0.3.1 |
libsecp256k1 crates.io | All versions | 0.3.1 |
libsecp256k1 crates.io | From 0.0.0-0 | 0.3.1 |
Products include Parity Libsecp256k1.
How do I fix CVE-2019-25003?
Upgrade libsecp256k1 to 0.3.1 or later.
Is CVE-2019-25003 being exploited?
There is no known exploitation of CVE-2019-25003 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-hrjm-c879-pp86, RUSTSEC-2019-0027.