What’s Vulnerable › Vulnerabilities

CVE-2011-2207

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.2% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2019-11-27 · updated 2026-06-16
• Weakness: CWE-295

Description

dirmngr before 2.1.0 improperly handles certain system calls, which allows remote attackers to cause a denial of service (DOS) via a specially-crafted certificate.

Affected products

• Debian Linux: 8.0
• GnuPG: before 2.1.0 — fixed in 2.1.0
• Red Hat Enterprise Linux: 6.0

How to fix

Upgrade to a fixed version: GnuPG 2.1.0. Check the vendor advisory for mitigations.

References

• https://access.redhat.com/security/cve/cve-2011-2207
• https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=627377
• https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2011-2207
• https://security-tracker.debian.org/tracker/CVE-2011-2207
• https://www.openwall.com/lists/oss-security/2011/06/15/6
• https://access.redhat.com/security/cve/cve-2011-2207
• https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=627377
• https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2011-2207
• https://security-tracker.debian.org/tracker/CVE-2011-2207
• https://www.openwall.com/lists/oss-security/2011/06/15/6

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