Description
In etcd before versions 3.3.23 and 3.4.10, it is possible to have an entry index greater then the number of entries in the ReadAll method in wal/wal.go. This could cause issues when WAL entries are being read during consensus as an arbitrary etcd consensus participant could go down from a runtime panic when reading the entry.
References (2)
Core 2
Core References
Third Party Advisory x_refsource_confirm
https://github.com/etcd-io/etcd/security/advisories/GHSA-m332-53r6-2w93
Mailing List, Third Party Advisory vendor-advisory
x_refsource_fedora
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L6B6R43Y7M3DCHWK3L3UVGE2K6WWECMP/
Scores
CVSS v3
6.5
EPSS
0.0126
EPSS Percentile
65.6%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Details
CWE
CWE-129
CWE-20
Status
published
Products (3)
etcd/etcd
< 3.3.23
etcd/v3
0 - 3.3.23Go
fedoraproject/fedora
32
Published
Aug 05, 2020
Tracked Since
Feb 18, 2026