QID 982037

QID 982037: Go (go) Security Update for github.com/ethereum/go-ethereum/les (GHSA-r33q-22hv-j29q)

Security update has been released for github.com/ethereum/go-ethereum/les,github.com/ethereum/go-ethereum to fix the vulnerability.

Note: The preceding description block is extracted directly from the security advisory. Using automation, we have attempted to clean and format it as much as possible without introducing additional issues.

A DoS vulnerability can make a LES server crash via malicious `GetProofsV2` request from a connected LES client.

CVSS V3 rated as High - 6.5 severity.

CVSS V2 rated as Medium - 4 severity.

Solution

The vulnerability was patched in https://github.com/ethereum/go-ethereum/pull/21896.Workaround:
This vulnerability only concerns users explicitly enabling `les` server; disabling `les` prevents the exploit.
It can also be patched by manually applying the patch in https://github.com/ethereum/go-ethereum/pull/21896.

Vendor References

GHSA-r33q-22hv-j29q - github.com/advisories/GHSA-r33q-22hv-j29q

CVEs related to QID 982037

CVE-2020-26264 |

Software Advisories

Advisory ID	Software	Component	Link
GHSA-r33q-22hv-j29q	github.com/ethereum/go-ethereum		github.com/advisories/GHSA-r33q-22hv-j29q
GHSA-r33q-22hv-j29q	github.com/ethereum/go-ethereum/les		github.com/advisories/GHSA-r33q-22hv-j29q

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