Ubuntu Security Notice 4646-2 - USN-4646-1 fixed vulnerabilities in poppler. The fix for CVE-2019-10871 introduced a regression causing certain applications linked against poppler to fail. This update backs out the fix pending further investigation. It was discovered that Poppler incorrectly handled certain files. If a user or automated system were tricked into opening a crafted PDF file, an attacker could cause a denial of service. Various other issues were also addressed.
9431298902d09c73f0540e5bc84aa3b66ae7db15eebf0512eb5803b2aee5d378