CVE-2019-11925

Insufficient boundary checks when processing the JPEG APP12 block marker in the GD extension could allow access to out-of-bounds memory via a maliciously constructed invalid JPEG input. This issue affects HHVM versions prior to 3.30.9, all versions between 4.0.0 and 4.8.3, all versions between 4.9.0 and 4.15.2, and versions 4.16.0 to 4.16.3, 4.17.0 to 4.17.2, 4.18.0 to 4.18.1, 4.19.0, 4.20.0 to 4.20.1.

• https://github.com/facebook/hhvm/commit/f1cd34e63c2a0d9702be3d41462db7bfd0ae7da3
  Patch
• https://hhvm.com/blog/2019/09/03/security-update.html
  Third Party Advisory
• https://www.facebook.com/security/advisories/cve-2019-11925
  Vendor Advisory
• https://github.com/facebook/hhvm/commit/f1cd34e63c2a0d9702be3d41462db7bfd0ae7da3
  Patch
• https://hhvm.com/blog/2019/09/03/security-update.html
  Third Party Advisory
• https://www.facebook.com/security/advisories/cve-2019-11925
  Vendor Advisory