Vulnerability in Freeradius
CVE-2019-17185
In FreeRADIUS 3.0.x before 3.0.20, the EAP-pwd module used a global OpenSSL BN_CTX instance to handle all handshakes. This mean multiple threads use the same BN_CTX instance concurrently, resulting in crashes when concurrent EAP-pwd handshakes are initiated. This can be abused by an adversary as a Denial-of-Service (DoS) attack.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.022 (82.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 82nd percentile — 82.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.022 · newest: 0.022 · change: 0.000
Affected products
- Freeradius
- openSUSE Leap — versions 15.1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- freeradius.org/security/ (Vendor Advisory)
- github.com/FreeRADIUS/freeradius-server/releases/tag/release_3_0_20 (Third Party Advisory, Release Notes)
- lists.opensuse.org/opensuse-security-announce/2020-04/msg00039.html (vendor-advisory, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2019-17185?
- CVE-2019-17185 is a high-severity vulnerability in Freeradius, classified under Improper Synchronization. CVSS score: 7.5/10. Published 2020-03-21.
- How severe is CVE-2019-17185?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2019-17185 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.