CVE-2020-15106
Panic due to malformed WALs in go.etcd.io/etcd
Impact
### Vulnerability type Data Validation ### Detail 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. ### Specific Go Packages Affected github.com/etcd-io/etcd/wal ### References Find out more on this vulnerability in the [security audit report](https://github.com/etcd-io/etcd/blob/master/security/SECURITY_AUDIT.pdf) ### For more information If you have any questions or comments about this advisory: * Contact the [etcd security committee](https://github.com/etcd-io/etcd/blob/master/security/security-release-process.md#product-security-committee-psc)
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| go | go.etcd.io/etcd | < 0.5.0-alpha.5.0.20200423152442-f4b650b51dc4 | 0.5.0-alpha.5.0.20200423152442-f4b650b51dc4 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Etcd | Etcd | before 3.3.23 from 3.4.0 before 3.4.10 |
| Fedoraproject | Fedora | Version 32 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/etcd-io/etcd/security/advisories/GHSA-p4g4-wgrh-qrg2
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L6B6R43Y7M3DCHWK3L3UVGE2K6WWECMP/
- https://github.com/advisories/GHSA-p4g4-wgrh-qrg2
- https://nvd.nist.gov/vuln/detail/CVE-2020-15106
- https://github.com/etcd-io/etcd/pull/11793
- https://github.com/etcd-io/etcd/commit/4571e528f49625d3de3170f219a45c3b3d38c675
- https://github.com/etcd-io/etcd/commit/f4b650b51dc4a53a8700700dc12e1242ac56ba07
- https://github.com/etcd-io/etcd/blob/master/security/SECURITY_AUDIT.pdf
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/L6B6R43Y7M3DCHWK3L3UVGE2K6WWECMP/
- https://pkg.go.dev/vuln/GO-2020-0005