CVE-2019-11235

FreeRADIUS before 3.0.19 mishandles the "each participant verifies that the received scalar is within a range, and that the received group element is a valid…

published April 21, 2019

CVSS
—
EPSS
4%
Percentile
89.3
In the wild
Unconfirmed
What it is

⚠️ A subtle flaw in FreeRADIUS can open doors to vulnerabilities lurking in the shadows! Just like a safety check that misses a critical step, this Dragonblood issue could let attackers slip through unnoticed. 🔥 Think of it as a quality control check on an assembly line; if the inspector ignores a faulty product, it could lead to major issues down the road. Similarly, this mishandling of scalar values and group elements could compromise the entire security mechanism in FreeRADIUS. An attacker could exploit this oversight to manipulate cryptographic exchanges, potentially undermining trust in the entire system. While this vulnerability has not been widely exploited yet, the risks of unauthorized access or spoofing are absolutely serious, making it essential to address it promptly.

Put simply

Think of it as a quality control check on an assembly line; if the inspector ignores a faulty product, it could lead to major issues down the road. Similarly, this mishandling of scalar values and group elements could compromise the entire security mechanism in FreeRADIUS. CVE-2019-11235 affects FreeRADIUS versions before 3.0.19, where the verification process for scalar values and group elements on elliptic curves lacks robustness, allowing for potential cryptographic weaknesses.

What to do

An attacker could exploit this oversight to manipulate cryptographic exchanges, potentially undermining trust in the entire system. While this vulnerability has not been widely exploited yet, the risks of unauthorized access or spoofing are absolutely serious, making it essential to address it promptly. Upgrade FreeRADIUS to version 3.0.19 or later to mitigate this vulnerability. Additionally, review and enhance your cryptographic validation processes to ensure they are fail-safe and robust against manipulation. You've got this! By updating and tightening your security checks, you'll boost your defenses in no time! 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.03566 · 89.3th percentile
Published
2019-04-21T16:40Z
EPSS history
Timeline
  • 21 APR 16:40Z
    FreeRADIUS before 3.0.19 mishandles the "each participant verifies that the received scalar is within a range, and that the received group element is a valid…
    cvelistv5