VulnerabilityModified
CVE-2020-28194
It has an impact only when the attacker controls the RADIUS server, which can lead to arbitrary code execution.
CRITICAL 9.8EPSS 3.00%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.00%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 3.00% probability · 87th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-191
- Affected
- accel-ppp/accel-ppp
- Source
- cve@mitre.org
References
- https://github.com/accel-ppp/accel-ppp/commit/e9d369aa0054312b7633e964e9f7eb323f1f3d69Patch, Third Party Advisory
- https://github.com/accel-ppp/accel-ppp/security/advisories/GHSA-2m44-rh3c-x4grPatch, Third Party Advisory
- https://github.com/accel-ppp/accel-ppp/commit/e9d369aa0054312b7633e964e9f7eb323f1f3d69Patch, Third Party Advisory
- https://github.com/accel-ppp/accel-ppp/security/advisories/GHSA-2m44-rh3c-x4grPatch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.