Improper input validation in Etcd
CVE-2020-15106
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.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.013 (69.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 69th percentile — 69.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: 0.000
Affected products
- Etcd
- Etcd-Io Etcd — versions < 3.3.23, < 3.4.10
- Fedoraproject Fedora — versions 32
Weakness classification (CWE)
References
- github.com/etcd-io/etcd/security/advisories/GHSA-p4g4-wgrh-qrg2 (Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
Frequently asked questions
- What is CVE-2020-15106?
- CVE-2020-15106 is a medium-severity vulnerability in Etcd, classified under Improper Input Validation. CVSS score: 6.5/10. Published 2020-08-05.
- How severe is CVE-2020-15106?
- Medium severity. CVSS v3 base score is 6.5 out of 10.