CVE-2020-15112

Medium

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.

SeverityMedium

CVSS6.5

Exploit probability—

Product

Etcd

PublishedAug 5, 2020

First seenAug 5, 2020

Weakness typeCWE-20Improper input validation

How to fix

Update

etcd etcd3.3.23, 3.4.10 or later

Vendor advisories

lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L6B6R43Y7M3DCHWK3L3UVGE2K6WWECMP/

Affected products

Product	Affected versions	Fixed in
etcd etcd	v < 3.3.23, 3.4.0 ≤ v < 3.4.10	3.3.23, 3.4.10
fedoraproject fedora	32	—

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