CVE-2014-9087: Canonical Ubuntu Linux

High severity, CVSS 7.5. EPSS: 5.7% chance of exploitation in the next 30 days.

Integer underflow in the ksba_oid_to_str function in Libksba before 1.3.2, as used in GnuPG, allows remote attackers to cause a denial of service (crash) via a crafted OID in a (1) S/MIME message or (2) ECC based OpenPGP data, which triggers a buffer overflow.

Affected products

• Canonical Ubuntu Linux: version 12.04 only; version 14.04 only; version 14.10 only
• Debian Debian Linux: version 7.0 only; version 8.0 only
• Gnupg Gnupg: version 2.1.0 only
• Gnupg Libksba: before 1.3.2 (fixed in 1.3.2)
• Mageia Mageia: version 3.0 only; version 4.0 only

Published 2014-12-01. Last modified 2026-06-17.