CVEvulnerability

CVE-2020-15106

6.5 MEDIUM Published 2020-08-05 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2020-08-05
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS 3.1 ([email protected])
6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0 ([email protected])
4.0 MEDIUM — AV:N/AC:L/Au:S/C:N/I:N/A:P
Weaknesses
CWE-20

Description

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.

Affected configurations

• etcd etcd (< 3.3.23) • etcd etcd (>= 3.4.0 < 3.4.10) • fedoraproject fedora 32

Related

Weakness · CWE (1)

  • CWE-20 Improper Input Validation weakness

References