CVE-2015-8778: Canonical Ubuntu Linux

Critical severity, CVSS 9.8. EPSS: 5.7% chance of exploitation in the next 30 days.

Integer overflow in the GNU C Library (aka glibc or libc6) before 2.23 allows context-dependent attackers to cause a denial of service (application crash) or possibly execute arbitrary code via the size argument to the __hcreate_r function, which triggers out-of-bounds heap-memory access.

Affected products

• Canonical Ubuntu Linux: version 12.04 only; version 14.04 only; version 15.10 only
• Debian Debian Linux: version 8.0 only
• Fedoraproject Fedora: version 23 only
• GNU Glibc: up to and including 2.22
• Opensuse Opensuse: version 13.2 only
• Suse Linux Enterprise Debuginfo: version 11 only
• Suse Linux Enterprise Desktop: version 11 only; version 12 only
• Suse Linux Enterprise Server: version 11 only; version 12 only
• Suse Linux Enterprise Software Development Kit: version 11 only; version 12 only
• Suse Suse Linux Enterprise Server: version 12 only

Published 2016-04-19. Last modified 2026-06-17.