CVE-2022-37026

Published: 21 September 2022

In Erlang/OTP before 23.3.4.15, 24.x before 24.3.4.2, and 25.x before 25.0.2, there is a Client Authentication Bypass in certain client-certification situations for SSL, TLS, and DTLS.

From the Ubuntu Security Team

It was discovered that Erlang did not properly implement TLS client certificate validation during the TLS handshake. A remote attacker could use this issue to bypass client authentication.

Notes

Author	Note
mdeslaur	only an issue when client certificates are used

Priority

Cvss 3 Severity Score

9.8

Score breakdown

Status

Package	Release	Status
erlang Launchpad, Ubuntu, Debian	bionic	Needs triage
	focal	Released (1:22.2.7+dfsg-1ubuntu0.2)
	jammy	Released (1:24.2.1+dfsg-1ubuntu0.1)
	kinetic	Released (1:24.3.4.1+dfsg-1ubuntu0.1)
	lunar	Released (1:24.3.4.5+dfsg-1)
	trusty	Needs triage
	upstream	Needs triage
	xenial	Needs triage
	Patches: upstream: https://github.com/erlang/otp/commit/cd5024867e7b7d3a6e94194af9e01e1fb77e36c9 (23.x) upstream: https://github.com/erlang/otp/commit/6a1baa36e4e6c1b682e8b48e0c141602e0b8e6e5 (23.x) upstream: https://github.com/erlang/otp/commit/254f2728902bc7e80a67726ebbc1a0b3ab7742eb (24.x) upstream: https://github.com/erlang/otp/commit/33e7570e075e0b84efef91b2f307fcf938517b1c (24.x) opensuse: https://build.opensuse.org/package/view_file/SUSE:SLE-15-SP3:Update/erlang/CVE-2022-37026-client-auth-bypass.patch?expand=1 (22.x)

Severity score breakdown

Parameter	Value
Base score	9.8
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

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