CVE-2019-11925 Information

Description

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.

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Reference

https://github.com/facebook/hhvm/commit/f1cd34e63c2a0d9702be3d41462db7bfd0ae7da3 https://hhvm.com/blog/2019/09/03/security-update.html https://www.facebook.com/security/advisories/cve-2019-11925

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.8