In etcd before versions 3.3.23 and 3.4.10, a large slice causes panic in decodeRecord method. The size of a record is stored in the length field of a WAL file and no additional validation is done on this data. Therefore, it is possible to forge an extremely large frame size that can unintentionally panic at the expense of any RAFT participant trying to decode the WAL.
CVE-2020-15106 - Medium Severity Vulnerability
Auditing for TLS certificates (Go code)
Library home page: https://proxy.golang.org/github.com/google/certificate-transparency-go/@v/v1.0.20.zip
Dependency Hierarchy: - github.com/docker/swarmkit/ca-5a5494a9a7b408b790533a5e4e1cb43ca1c32aad (Root Library) - github.com/cloudflare/cfssl/initca-1.3.2 - github.com/cloudflare/cfssl/config-1.3.2 - github.com/cloudflare/cfssl/helpers-1.3.2 - :x: **github.com/google/certificate-transparency-go-v1.0.20** (Vulnerable Library)
Found in HEAD commit: 74c0db1e26014a7f5e115cea39a5b8613c912db7
Found in base branch: master
In etcd before versions 3.3.23 and 3.4.10, a large slice causes panic in decodeRecord method. The size of a record is stored in the length field of a WAL file and no additional validation is done on this data. Therefore, it is possible to forge an extremely large frame size that can unintentionally panic at the expense of any RAFT participant trying to decode the WAL.
Publish Date: 2020-08-05
URL: CVE-2020-15106
Base Score Metrics: - Exploitability Metrics: - Attack Vector: Network - Attack Complexity: Low - Privileges Required: Low - User Interaction: None - Scope: Unchanged - Impact Metrics: - Confidentiality Impact: None - Integrity Impact: None - Availability Impact: High
For more information on CVSS3 Scores, click here.Type: Upgrade version
Origin: https://nvd.nist.gov/vuln/detail/CVE-2020-15106
Release Date: 2020-08-05
Fix Resolution: v3.3.23;v3.4.10