Vulnerability in Rustcrypto Rsa
CVE-2023-49092
RustCrypto/RSA is a portable RSA implementation in pure Rust. Due to a non-constant-time implementation, information about the private key is leaked through timing information which is observable over the network. An attacker may be able to use that information to recover the key. There is currently no fix available. As a workaround, avoid using the RSA crate in settings where attackers are able to observe timing information, e.g. local use on a non-compromised computer.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.006 (48.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 48th percentile — 48.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
- Rustcrypto Rsa — versions <= 0.9.5
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/RustCrypto/RSA/security/advisories/GHSA-c38w-74pg-36hr (Vendor Advisory)
- github.com/RustCrypto/RSA/issues/19 (Issue Tracking)
Frequently asked questions
- What is CVE-2023-49092?
- CVE-2023-49092 is a medium-severity vulnerability in Rustcrypto Rsa, classified under CWE-385. CVSS score: 5.9/10. Published 2023-11-28.
- How severe is CVE-2023-49092?
- Medium severity. CVSS v3 base score is 5.9 out of 10.
- Is CVE-2023-49092 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.