Insufficient boundary checks when formatting numbers in number_format allows read/write access to out-of-bounds memory, potentially leading

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

• facebook hhvmbefore 3.30.10
• facebook hhvm4.0.0 and later · up to 4.8.5 inclusive
• facebook hhvm4.9.0 and later · up to 4.18.2 inclusive
• facebook hhvm4.19.0
• facebook hhvm4.19.1
• facebook hhvm4.20.0
• facebook hhvm4.20.1
• facebook hhvm4.20.2
• facebook hhvm4.21.0
• facebook hhvm4.22.0
• facebook hhvm4.23.0

Versions reported by the vendor

Affected version ranges reported by the assigning authority (facebook). Independent of NVD's CPE analysis and usually ahead of it.

• Facebook HHVM

  • 4.24.0, 4.23.2, 4.22.1, 4.21.1, 4.20.3, 4.19.2, 4.18.3, 4.8.5, 3.30.11affected
  • 4.23.0 and later · before unspecifiedaffected
  • 4.22.0 and later · before unspecifiedaffected
  • 4.21.0 and later · before unspecifiedaffected
  • 4.20.0 and later · before unspecifiedaffected
  • 4.19.0 and later · before unspecifiedaffected
  • 4.9.0 and later · before unspecifiedaffected
  • 4.0.0 and later · before unspecifiedaffected
  • unspecified and later · up to and including 3.30.10affected

Other highest-scoring records for the same primary product.

• CVE-2019-11930An invalid free in mb_detect_order can cause the application to crash or potentially result in remote code execution.
  40Plan
• CVE-2019-11926Insufficient boundary checks when processing M_SOFx markers from JPEG headers in the GD extension could allow access to out-of-bounds memory
  40Plan
• CVE-2019-11925Insufficient boundary checks when processing the JPEG APP12 block marker in the GD extension could allow access to out-of-bounds memory via
  40Plan
• CVE-2019-3561Insufficient boundary checks for the strrpos and strripos functions allow access to out-of-bounds memory.
  40Plan
• CVE-2019-3557The implementations of streams for bz2 and php://output improperly implemented their readImpl functions, returning -1 consistently.
  40Plan
• CVE-2018-6345The function number_format is vulnerable to a heap overflow issue when its second argument ($dec_points) is excessively large.
  40Plan

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.