Medium
Security advisory
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.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2020-15106, CVE-2020-15112
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 10:52 UTC · Revision 1
Source evidence
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.
osv:CVE-2020-15112
Complete source record
{
"id": "909af2aedef25f4995d74e7d5a82e391dfbc7e6a170eb7fb00c76d88fdd74db7",
"url": "https://osv.dev/vulnerability/CVE-2020-15112",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2020-15112",
"summary": "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.",
"evidence": "osv:CVE-2020-15112",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2020-15112",
"aliases": [
"BIT-etcd-2020-15106",
"BIT-etcd-2020-15112",
"CVE-2020-15106",
"CVE-2020-15112",
"GHSA-m332-53r6-2w93",
"GHSA-p4g4-wgrh-qrg2",
"GO-2020-0005"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/etcd-io/etcd",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "4873f5516bd98c82dddb81247038337f25abac4e"
},
{
"introduced": "898bd1351fcf6e0ebce8d7c8bbbbf3f3e42aa42c"
},
{
"fixed": "18dfb9cca345bb2b2fbe73d5fc31028c2477bef1"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:etcd:etcd:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "3.3.23"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:etcd:etcd:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "3.4.0"
},
{
"fixed": "3.4.10"
}
],
"source": "CPE_RANGE"
}
]
}
}
],
"versions": [
"v3.3.22",
"v3.4.9",
"v3.4.8",
"v3.3.21",
"v3.3.20",
"v3.4.7",
"v3.3.19",
"v3.4.6",
"v3.4.5",
"v3.4.4",
"v3.3.18",
"v3.4.3",
"v3.3.17",
"v3.3.16",
"v3.4.2",
"v3.4.1",
"v3.4.0",
"v3.3.15",
"v3.3.14",
"v3.3.14-rc.0",
"v3.3.14-beta.0",
"v3.3.13",
"v3.3.12",
"v3.3.11",
"v3.3.10",
"v3.3.9",
"v3.3.8",
"v3.3.7",
"v3.3.6",
"v3.3.5",
"v3.3.4",
"v3.3.3",
"v3.3.2",
"v3.3.1",
"v3.3.0",
"v3.3.0-rc.4",
"v3.3.0-rc.3",
"v3.3.0-rc.2",
"v3.3.0-rc.1",
"v3.3.0-rc.0",
"v3.2.10_plus_git",
"v3.2.0_plus_git",
"v3.2.0+git",
"v3.2.0-rc.1",
"v3.2.0-rc.0",
"v3.1.0-rc.1",
"v3.1.0-rc.0",
"v3.1.0-alpha.1",
"v3.1.0-alpha.0",
"v3.0.0-beta.0",
"v2.3.0",
"v2.3.0-alpha.1",
"v2.3.0-alpha.0",
"v2.2.0",
"v2.2.0-rc.0",
"v2.2.0-alpha.1",
"v2.2.0-alpha.0",
"v2.1.1",
"v2.1.0",
"v2.1.0-rc.0",
"v2.1.0-alpha.1",
"v2.1.0-alpha.0",
"v2.0.4",
"v2.0.3",
"v2.0.2",
"v2.0.1",
"v2.0.0",
"v0.4.6",
"v2.0.0-rc.1",
"v0.5.0-alpha.5",
"v0.5.0-alpha.4",
"v0.5.0-alpha.3",
"v0.5.0-alpha.2",
"v0.5.0-alpha.1",
"v0.5.0-alpha.0",
"v0.4.5",
"v0.4.4",
"v0.4.3",
"v0.4.2",
"v0.4.1",
"v0.4.0",
"v0.3.0",
"v0.2.0-rc4",
"v0.2.0",
"v0.2.0-rc3",
"v0.2.0-rc2",
"v0.2.0-rc1",
"v0.1.2",
"v0.1.1",
"v0.1.0",
"0"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-15112.json"
}
}
],
"modified": "2026-10-20T10:51:51.973612112Z",
"provider": "osv",
"references": [
"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L6B6R43Y7M3DCHWK3L3UVGE2K6WWECMP/",
"https://github.com/etcd-io/etcd/security/advisories/GHSA-m332-53r6-2w93"
],
"provider_metadata": {
"unresolved_ranges": [
{
"cpes": [
"cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*"
],
"vendor_product": "fedoraproject:fedora",
"extracted_events": [
{
"range": [
{
"introduced": "32"
},
{
"last_affected": "32"
}
],
"source": "CPE_STRING"
}
]
}
]
}
},
"related_cves": [
{
"value": "CVE-2020-15106",
"evidence": "/aliases"
},
{
"value": "CVE-2020-15112",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 383041,
"published_at": "2020-08-05T20:15:14.553+00:00"
}