curl security and bug fix update

[7.29.0-57.0.1]

• Fix TFTP small blocksize heap buffer overflow (https://curl.haxx.se/docs/CVE-2019-5482.html)[CVE-2019-5482][Orabug: 30568724]
• Security Fixes [OraBug: 28939992]
• CVE-2016-8615 cookie injection for other servers (https://curl.haxx.se/docs/CVE-2016-8615.html)
• CVE-2016-8616 case insensitive password comparison (https://curl.haxx.se/docs/CVE-2016-8616.html)
• CVE-2016-8617 OOB write via unchecked multiplication (https://curl.haxx.se/docs/CVE-2016-8617.html)
• CVE-2016-8618 double-free in curl_maprintf (https://curl.haxx.se/docs/CVE-2016-8618.html)
• CVE-2016-8619 double-free in krb5 code (https://curl.haxx.se/docs/CVE-2016-8619.html)
• CVE-2016-8621 curl_getdate read out of bounds (https://curl.haxx.se/docs/CVE-2016-8621.html)
• CVE-2016-8622 URL unescape heap overflow via integer truncation (https://curl.haxx.se/docs/CVE-2016-8622.html)
• CVE-2016-8623 Use-after-free via shared cookies (https://curl.haxx.se/docs/CVE-2016-8623.html)
• CVE-2016-8624 invalid URL parsing with # (https://curl.haxx.se/docs/CVE-2016-8624.html)
  [7.29.0-57]
• allow curl to POST from a char device (#1769307)
  [7.29.0-56]
• fix auth failure with duplicated WWW-Authenticate header (#1754736)
  [7.29.0-55]
• fix TFTP receive buffer overflow (CVE-2019-5436)