Home/CVE/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 t
CVE

CVE-2020-15112

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 t

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.

MEDIUM · CVSS 6.5 EPSS 0.00113
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-129Improper Validation of Array Index
CWE-20Improper Input Validation
▤

Affected Products & Versions

3
etcd< 3.3.23
etcd>= 3.4.0 and < 3.4.10
fedoraproject fedoraall versions
▤

Affected Packages

2
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
Go go.etcd.io/etcd LOW fixed in 0.5.0-alpha.5.0.20200423152442-f4b650b51dc4
Go go.etcd.io/etcd/v3 MODERATE fixed in 3.3.23
▣

Scoring & Timeline

6.5
MEDIUM · CVSS v3.1 · security-advisories@github.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD05 Aug 2020 · 08:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
⚑

Vendor Advisories

8
suse-csafSUSE-SU-2024:3656-1
usnUSN-5628-2
usnUSN-5628-1
msrcCVE-2020-15112
rhsaRHSA-2021:2438Moderate
🔗

References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/etcd-io/etcd/security/advisories/GHSA-m332-53r6-2w93Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L6B6R43Y7M3DCHWK3L3UVGE2K6WWECMP/
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