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CVE-2020-15112

Good to know:

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Date: August 5, 2020

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.

Language: Go

Severity Score

Related Resources (12)

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L6B6R43Y7M3DCHWK3L3UVGE2K6WWECMP/
https://github.com/etcd-io/etcd/commit/7d1cf640497cbcdfb932e619b13624112c7e3865
https://github.com/etcd-io/etcd/commit/f4b650b51dc4a53a8700700dc12e1242ac56ba07
https://github.com/etcd-io/etcd
https://pkg.go.dev/vuln/GO-2020-0005
https://access.redhat.com/security/cve/CVE-2020-15112
https://github.com/etcd-io/etcd/pull/11793
https://nvd.nist.gov/vuln/detail/CVE-2020-15112
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/L6B6R43Y7M3DCHWK3L3UVGE2K6WWECMP
https://github.com/etcd-io/etcd/blob/master/security/SECURITY_AUDIT.pdf
https://github.com/etcd-io/etcd/security/advisories/GHSA-m332-53r6-2w93
https://www.mend.io/vulnerability-database/CVE-2020-15112

Severity Score

Weakness Type (CWE)

Improper Validation of Array Index

CWE-129

Input Validation

CWE-20

Top Fix

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): SINGLE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
Additional information:

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