What’s Vulnerable › Vulnerabilities

CVE-2012-6639

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.0% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2019-11-25 · updated 2026-06-16
• Weakness: CWE-269

Description

An privilege elevation vulnerability exists in Cloud-init before 0.7.0 when requests to an untrusted system are submitted for EC2 instance data.

Affected products

• Canonical Ltd. cloud-init: before 0.7.0 — fixed in 0.7.0
• Debian Linux: 8.0, 9.0, 10.0
• SUSE Linux Enterprise Server: 11-sp2, 11-sp3

How to fix

Upgrade to a fixed version: Canonical Ltd. cloud-init 0.7.0. Check the vendor advisory for mitigations.

References

• http://www.openwall.com/lists/oss-security/2014/03/06/7
• https://access.redhat.com/security/cve/cve-2012-6639
• https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2012-6639
• https://bugzilla.suse.com/show_bug.cgi?id=CVE-2012-6639
• https://security-tracker.debian.org/tracker/CVE-2012-6639
• https://www.securityfocus.com/bid/66019/references
• http://www.openwall.com/lists/oss-security/2014/03/06/7
• https://access.redhat.com/security/cve/cve-2012-6639
• https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2012-6639
• https://bugzilla.suse.com/show_bug.cgi?id=CVE-2012-6639
• https://security-tracker.debian.org/tracker/CVE-2012-6639
• https://www.securityfocus.com/bid/66019/references

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