CVE-2020-15136

unknown

Published 2024-01-31 · Modified 2026-03-14

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CVSS v3

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CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N

CVSS v4 NEW

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not yet in upstream

VIR risk

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Description

In ectd before versions 3.4.10 and 3.3.23, gateway TLS authentication is only applied to endpoints detected in DNS SRV records. When starting a gateway, TLS authentication will only be attempted on endpoints identified in DNS SRV records for a given domain, which occurs in the discoverEndpoints function. No authentication is performed against endpoints provided in the --endpoints flag. This has been fixed in versions 3.4.10 and 3.3.23 with improved documentation and deprecation of the functionality.

Predictions

Exploit likelihood

30%

Patch ETA

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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 with source_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	`>=3.4.0-rc.0,<3.4.10`	`3.4.10`
Go	go.etcd.io/etcd	`<3.3.23`	`3.3.23`

References

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.