VulnerabilityModified
CVE-2020-26264
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.
MEDIUM 6.5EPSS 1.89%
Does this matter?
Lower severity and a low EPSS score (1.89%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 3.1
- 6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 1.89% probability · 78th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-400
- Affected
- ethereum/go ethereum
- Source
- security-advisories@github.com
References
- https://github.com/ethereum/go-ethereum/commit/bddd103a9f0af27ef533f04e06ea429cf76b6d46Patch, Third Party Advisory
- https://github.com/ethereum/go-ethereum/pull/21896Patch, Third Party Advisory
- https://github.com/ethereum/go-ethereum/releases/tag/v1.9.25Third Party Advisory
- https://github.com/ethereum/go-ethereum/security/advisories/GHSA-r33q-22hv-j29qThird Party Advisory
- https://github.com/ethereum/go-ethereum/commit/bddd103a9f0af27ef533f04e06ea429cf76b6d46Patch, Third Party Advisory
- https://github.com/ethereum/go-ethereum/pull/21896Patch, Third Party Advisory
- https://github.com/ethereum/go-ethereum/releases/tag/v1.9.25Third Party Advisory
- https://github.com/ethereum/go-ethereum/security/advisories/GHSA-r33q-22hv-j29qThird Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.