CVE-2020-15112

Improper Input Validation in etcd

MEDIUM

6.5

CVSS Score

Published: August 5, 2020 at 08:00 PM UTC

Updated: June 17, 2026 at 02:56 AM UTC

3 products affected across 3 vendorsFedoraEtcd:Etcd

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Severity

MEDIUM6.5

Exploit prediction

EPSS 1%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Etcd:· Etcd

95%

v < 3.3.233.4.0 ≤ v < 3.4.10

Affected range stops below 3.3.23, so it looks safe — our inference, not a vendor statement

Affected range stops below 3.4.10, so it looks safe — our inference, not a vendor statement

Fedora · Fedora Projectrpm

95%

Etcd · Etcd Io

60%

v < 3.3.23v < 3.4.10

Affected range stops below 3.3.23, so it looks safe — our inference, not a vendor statement

Affected range stops below 3.4.10, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

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

References (2)

x_refsource_CONFIRMThird Party Advisory

Source: [email protected]

https://github.com/etcd-io/etcd/security/advisories/GHSA-m332-53r6-2w93

Vendor Advisoryx_refsource_FEDORA

Source: [email protected]

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

CVSS

6.5MEDIUMGitHub_M

Attack Vector: NETWORK
Complexity: LOW
Privileges: LOW
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: NONE
Integrity: NONE
Availability: HIGH

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-20CWE-129

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