high7.5

CVE-2020-7919

Helm uses crypto package vulnerable to panic from malformed X.509 certificate

Impact

The Helm core maintainers have identified a high severity security vulnerability in Go's `crypto` package affecting all versions prior to Helm 2.16.8 and Helm 3.1.0. Thanks to @ravin9249 for identifying the vulnerability. ### Impact Go before 1.12.16 and 1.13.x before 1.13.7 (and the `crypto/cryptobyte` package before 0.0.0-20200124225646-8b5121be2f68 for Go) allows attacks on clients resulting in a panic via a malformed X.509 certificate. This may allow a remote attacker to cause a denial of service. ### Patches A patch to compile Helm against Go 1.14.4 has been provided for Helm 2 and is available in Helm 2.16.8. Helm 3.1.0 and newer are compiled against Go 1.13.7+. ### Workarounds No workaround is available. Users are urged to upgrade. ### References - https://nvd.nist.gov/vuln/detail/CVE-2020-7919 - https://github.com/helm/helm/pull/8288 ### For more information If you have any questions or comments about this advisory: * Open an issue in [the Helm repository](https://github.com/helm/helm/issues) * For security-specific issues, email us at <cncf-helm-security@lists.cncf.io>

Affected packages

Ecosystem	Package	Affected	Fixed in
go	`github.com/helm/helm`	>= 2.0.0, < 2.16.8	2.16.8
go	`golang.org/x/crypto`	< 0.0.0-20200124225646-8b5121be2f68	0.0.0-20200124225646-8b5121be2f68
go	`helm.sh/helm/v3`	>= 3.0.0, < 3.1.0	3.1.0

Affected products

Vendor	Product	Affected versions
Golang	Go	from 1.12 before 1.12.6 from 1.13 before 1.13.7
Debian	Debian Linux	Version 10.0
Fedoraproject	Fedora	Version 31
Netapp	Cloud Insights Telegraf	All versions

Weakness classification

CWE-295