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CVE-2019-11929 Details

Description

Insufficient boundary checks when formatting numbers in number_format allows read/write access to out-of-bounds memory, potentially leading to remote code execution. This issue affects HHVM versions prior to 3.30.10, all versions between 4.0.0 and 4.8.5, all versions between 4.9.0 and 4.18.2, and versions 4.19.0, 4.19.1, 4.20.0, 4.20.1, 4.20.2, 4.21.0, 4.22.0, 4.23.0.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:9.8 CRITICALVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://github.com/facebook/hhvm/commit/dbeb9a56a638e3fdcef8b691c2a2967132dae692 CVEPatchThird Party Advisory
https://hhvm.com/blog/2019/09/25/security-update.html CVEVendor Advisory
https://www.facebook.com/security/advisories/cve-2019-11929 CVEThird Party Advisory
https://github.com/facebook/hhvm/commit/dbeb9a56a638e3fdcef8b691c2a2967132dae692 [email protected]PatchThird Party Advisory
https://hhvm.com/blog/2019/09/25/security-update.html [email protected]Vendor Advisory

see all 6 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer[email protected]
CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer[email protected]

Affected Products

ProductVersions
facebook hhvm
< 3.30.10
>= 4.0.0, <= 4.8.5
>= 4.9.0, <= 4.18.2
4.19.0
4.19.1

CPE

  • cpe:2.3:a:facebook:hhvm:*:*:*:*:*:*:*:*
  • cpe:2.3:a:facebook:hhvm:4.19.0:*:*:*:*:*:*:*
  • cpe:2.3:a:facebook:hhvm:4.19.1:*:*:*:*:*:*:*
  • cpe:2.3:a:facebook:hhvm:4.20.0:*:*:*:*:*:*:*
  • cpe:2.3:a:facebook:hhvm:4.20.1:*:*:*:*:*:*:*
  • cpe:2.3:a:facebook:hhvm:4.20.2:*:*:*:*:*:*:*
  • cpe:2.3:a:facebook:hhvm:4.21.0:*:*:*:*:*:*:*
  • cpe:2.3:a:facebook:hhvm:4.22.0:*:*:*:*:*:*:*
  • cpe:2.3:a:facebook:hhvm:4.23.0:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

5 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2019-11929
NVD Published Date:
Oct 2, 2019
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2019-11929 Details - Not Deferred