What’s Vulnerable › Vulnerabilities

CVE-2019-6486

• Severity: high (CVSS 8.2 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 4.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2019-01-24 · updated 2026-06-17
• Weakness: CWE-770

Description

Go before 1.10.8 and 1.11.x before 1.11.5 mishandles P-521 and P-384 elliptic curves, which allows attackers to cause a denial of service (CPU consumption) or possibly conduct ECDH private key recovery attacks.

Affected products

• Debian Linux: 8.0, 9.0
• Go: before 1.10.8; from 1.11.1 before 1.11.5 — fixed in 1.10.8, 1.11.5
• openSUSE Leap: 15.0

How to fix

Upgrade to a fixed version: Go 1.10.8, 1.11.5. Check the vendor advisory for mitigations.

References

• http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00042.html
• http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00060.html
• http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00011.html
• http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00015.html
• http://www.securityfocus.com/bid/106740
• https://github.com/golang/go/commit/42b42f71cf8f5956c09e66230293dfb5db652360
• https://github.com/golang/go/issues/29903
• https://github.com/google/wycheproof
• https://groups.google.com/forum/#%21topic/golang-announce/mVeX35iXuSw
• https://lists.debian.org/debian-lts-announce/2019/02/msg00009.html
• https://www.debian.org/security/2019/dsa-4379
• https://www.debian.org/security/2019/dsa-4380

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