Panic due to malformed WALs in go.etcd.io/etcd

Vulnerability type

Data Validation

Detail

The size of a record is stored in the length field of a WAL file and no additional validation is done on this data. Therefore, it is possible to forge an extremely large frame size that can unintentionally panic at the expense of any RAFT participant trying to decode the WAL.

Specific Go Packages Affected

github.com/etcd-io/etcd/wal

References

Find out more on this vulnerability in the security audit report

For more information

If you have any questions or comments about this advisory:

• Contact the etcd security committee