CVE-2020-15106
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.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
SUSE Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Affected | — |
Debian Fixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 3.3.25+dfsg-5 |
| sid | Fixed | 3.3.25+dfsg-5 |
| forky | Fixed | 3.3.25+dfsg-5 |
| bullseye | Fixed | 3.3.25+dfsg-5 |
| bookworm | Fixed | 3.3.25+dfsg-5 |
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| Go | go.etcd.io/etcd/v3 | <3.3.23 | 3.3.23 |
| Go | go.etcd.io/etcd/v3 | >=3.4.0,<3.4.10 | 3.4.10 |
| Go | go.etcd.io/etcd | <0.5.0-alpha.5.0.20200423152442-f4b650b51dc4 | 0.5.0-alpha.5.0.20200423152442-f4b650b51dc4 |
References
- https://www.suse.com/security/cve/CVE-2020-15106.html
- https://security-tracker.debian.org/tracker/CVE-2020-15106
- https://github.com/etcd-io/etcd/security/advisories/GHSA-m332-53r6-2w93
- https://nvd.nist.gov/vuln/detail/CVE-2020-15112
- https://github.com/etcd-io/etcd/pull/11793
- https://github.com/etcd-io/etcd/commit/7d1cf640497cbcdfb932e619b13624112c7e3865
- https://github.com/etcd-io/etcd/commit/f4b650b51dc4a53a8700700dc12e1242ac56ba07
- https://github.com/etcd-io/etcd
- 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
- https://github.com/etcd-io/etcd/security/advisories/GHSA-p4g4-wgrh-qrg2
- https://nvd.nist.gov/vuln/detail/CVE-2020-15106
- https://github.com/etcd-io/etcd/commit/4571e528f49625d3de3170f219a45c3b3d38c675
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.