Ubuntu Security Notice 3479-1 - David Rowley discovered that PostgreSQL incorrectly handled memory when processing certain JSON functions. A remote attacker could possibly use this issue to obtain sensitive information. Dean Rasheed discovered that PostgreSQL incorrectly enforced SELECT privileges when processing INSERT ... ON CONFLICT DO UPDATE commands. A remote attacker could possibly use this issue to obtain sensitive information. This issue only affected Ubuntu 16.04 LTS, Ubuntu 17.04 and Ubuntu 17.10. Various other issues were also addressed. Continue reading...