CVE-2019-9675: Canonical Ubuntu Linux

High severity, CVSS 8.1. EPSS: 6% chance of exploitation in the next 30 days.

An issue was discovered in PHP 7.x before 7.1.27 and 7.3.x before 7.3.3. phar_tar_writeheaders_int in ext/phar/tar.c has a buffer overflow via a long link value. NOTE: The vendor indicates that the link value is used only when an archive contains a symlink, which currently cannot happen: "This issue allows theoretical compromise of security, but a practical attack is usually impossible.

Affected products

• Canonical Ubuntu Linux: version 12.04 only; version 14.04 only
• Opensuse Leap: version 42.3 only
• PHP PHP: from 7.0.0, before 7.1.27 (fixed in 7.1.27); from 7.3.0, before 7.3.3 (fixed in 7.3.3)

Published 2019-03-11. Last modified 2026-06-17.