CVE-2020-26264CWE-400

LES Server DoS via GetProofsV2

Medium · published December 11, 2020

CVSS v3.1
6.5
EPSS
2%
Percentile
79.4
In the wild
Unconfirmed
What it is

Go Ethereum, or "Geth", is the official Golang implementation of the Ethereum protocol. In Geth before version 1.9.25 a denial-of-service vulnerability can make a LES server crash via malicious GetProofsV2 request from a connected LES client. This vulnerability only concerns users explicitly enabling les server; disabling les prevents the exploit. The vulnerability was patched in version 1.9.25.

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.01886 · 79.4th percentile
Weakness
CWE-400 · Uncontrolled Resource Consumption
Published
2020-12-11T16:45Z
EPSS history
Timeline
  • 11 DEC 16:45Z
    LES Server DoS via GetProofsV2
    cvelistv5