CVE-2015-1607: Canonical Ubuntu Linux

Medium severity, CVSS 5.5. EPSS: 2.5% chance of exploitation in the next 30 days.

kbx/keybox-search.c in GnuPG before 1.4.19, 2.0.x before 2.0.27, and 2.1.x before 2.1.2 does not properly handle bitwise left-shifts, which allows remote attackers to cause a denial of service (invalid read operation) via a crafted keyring file, related to sign extensions and "memcpy with overlapping ranges."

Affected products

• Canonical Ubuntu Linux: version 10.04 only; version 12.04 only; version 14.04 only; version 14.10 only
• Gnupg Gnupg: before 1.4.19 (fixed in 1.4.19); from 2.0, before 2.0.27 (fixed in 2.0.27); from 2.1.0, before 2.1.2 (fixed in 2.1.2)

Published 2019-11-20. Last modified 2026-06-17.