Improper Boundary Checks in HHVM Affecting Multiple Versions
CVE-2020-1888

7.5HIGH

Key Information:

Vendor

Facebook

Status
Hhvm
Vendor
CVE Published:
3 March 2020

What is CVE-2020-1888?

This vulnerability arises from insufficient boundary checks when handling JSON decoding in HHVM, leading to potential out-of-bounds memory access. This scenario could allow attackers to exploit the weakness to create a Denial of Service (DoS) condition, impacting the availability and performance of affected systems. Various versions of HHVM, particularly those within the affected range, are susceptible, necessitating immediate attention from users to ensure security and system integrity.

Affected Version(s)

HHVM 4.45.1

HHVM 4.45.0

HHVM 4.44.1

References

https://github.com/facebook/hhvm/commit/b3679121bb3c7017f...
x_refsource_CONFIRM
https://hhvm.com/blog/2020/02/20/security-update.html
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CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
.