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CRITICAL · 9.8

CVE-2020-28194

Variable underflow exists in accel-ppp radius/packet.c when receiving a RADIUS vendor-specific attribute with length field is less than 2. It has an impact only when the attacker controls the RADIUS s...

Vulnerability Description

Variable underflow exists in accel-ppp radius/packet.c when receiving a RADIUS vendor-specific attribute with length field is less than 2. It has an impact only when the attacker controls the RADIUS server, which can lead to arbitrary code execution.

CVSS Score

9.8

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Affected Products

VendorProductVersions
Accel-PppAccel-Ppp< 1.12.0-e9d369a

Related Weaknesses (CWE)

CWE-191

References

FAQ

What is CVE-2020-28194?

CVE-2020-28194 is a vulnerability with a CVSS score of 9.8 (CRITICAL). Variable underflow exists in accel-ppp radius/packet.c when receiving a RADIUS vendor-specific attribute with length field is less than 2. It has an impact only when the attacker controls the RADIUS s...

How severe is CVE-2020-28194?

CVE-2020-28194 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2020-28194?

Check the references section above for vendor advisories and patch information. Affected products include: Accel-Ppp Accel-Ppp.