CVEvulnerability

CVE-2021-24036

9.8 CRITICAL Published 2021-07-23 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2021-07-23
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
7.5 HIGH — AV:N/AC:L/Au:N/C:P/I:P/A:P
Weaknesses
CWE-122, CWE-190

Description

Passing an attacker controlled size when creating an IOBuf could cause integer overflow, leading to an out of bounds write on the heap with the possibility of remote code execution. This issue affects versions of folly prior to v2021.07.22.00. This issue affects HHVM versions prior to 4.80.5, all versions between 4.81.0 and 4.102.1, all versions between 4.103.0 and 4.113.0, and versions 4.114.0, 4.115.0, 4.116.0, 4.117.0, 4.118.0 and 4.118.1.

Affected configurations

• facebook folly (< 2021.07.22.00) • facebook hhvm (< 4.80.5) • facebook hhvm (>= 4.81.0 <= 4.102.1) • facebook hhvm (>= 4.103.0 <= 4.113.0) • facebook hhvm 4.114.0 • facebook hhvm 4.115.0 • facebook hhvm 4.116.0 • facebook hhvm 4.117.0 • facebook hhvm 4.118.0 • facebook hhvm 4.118.1

Related

Weakness · CWE (2)

  • CWE-122 Heap-based Buffer Overflow weakness
  • CWE-190 Integer Overflow or Wraparound weakness

References