CVE-2020-15112 Improper Input Validation in etcd

2020-08-0520:00:15

CWE-20

GitHub_M

www.cve.org

6.5 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

6.8 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

36.3%

JSON

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.

CNA Affected

[
  {
    "product": "etcd",
    "vendor": "etcd-io",
    "versions": [
      {
        "status": "affected",
        "version": "< 3.3.23"
      },
      {
        "status": "affected",
        "version": "< 3.4.10"
      }
    ]
  }
]