CVE-2022-29242

Published: 24 May 2022

GOST engine is a reference implementation of the Russian GOST crypto algorithms for OpenSSL. TLS clients using GOST engine when ciphersuite `TLS_GOSTR341112_256_WITH_KUZNYECHIK_CTR_OMAC` is agreed and the server uses 512 bit GOST secret keys are vulnerable to buffer overflow. GOST engine version 3.0.1 contains a patch for this issue. Disabling ciphersuite `TLS_GOSTR341112_256_WITH_KUZNYECHIK_CTR_OMAC` is a possible workaround.

Priority

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package	Release	Status
libengine-gost-openssl1.1 Launchpad, Ubuntu, Debian	bionic	Needs triage
	focal	Needs triage
	impish	Ignored (end of life)
	jammy	Needs triage
	kinetic	Does not exist
	lunar	Does not exist
	mantic	Does not exist
	upstream	Needs triage

Severity score breakdown

Parameter	Value
Base score	7.5
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	None
Integrity impact	None
Availability impact	High
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

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