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CVE-2020-1900

UNKNOWN
Published 2021-03-11T00:55:20
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No CVSS data available

Description

When unserializing an object with dynamic properties HHVM needs to pre-reserve the full size of the dynamic property array before inserting anything into it. Otherwise the array might resize, invalidating previously stored references. This pre-reservation was not occurring in HHVM prior to v4.32.3, between versions 4.33.0 and 4.56.0, 4.57.0, 4.58.0, 4.58.1, 4.59.0, 4.60.0, 4.61.0, 4.62.0.

Available Exploits

No exploits available for this CVE.

Related News

No news articles found for this CVE.

Affected Products

Facebook

HHVM

Affected Versions:

4.62.1 4.62.0 4.61.1 4.61.0 4.60.1 4.60.0 4.59.1 4.59.0 4.58.2 4.58.0 4.57.1 4.57.0 4.56.1 4.33.0 4.32.3 unspecified

GitHub Security Advisories

Community-driven vulnerability intelligence from GitHub

⚠ Unreviewed CRITICAL

GHSA-g7r3-m2h7-28vw

Advisory Details

When unserializing an object with dynamic properties HHVM needs to pre-reserve the full size of the dynamic property array before inserting anything into it. Otherwise the array might resize, invalidating previously stored references. This pre-reservation was not occurring in HHVM prior to v4.32.3, between versions 4.33.0 and 4.56.0, 4.57.0, 4.58.0, 4.58.1, 4.59.0, 4.60.0, 4.61.0, 4.62.0.

CVSS Scoring

CVSS Score

9.0

References

ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2020-1900
WEB https://github.com/facebook/hhvm/commit/c1c4bb0cf9e076aafaf4ff3515556ef9faf906f3
WEB https://hhvm.com/blog/2020/06/30/security-update.html

Advisory provided by GitHub Security Advisory Database. Published: May 24, 2022, Modified: May 24, 2022

References

https://hhvm.com/blog/2020/06/30/security-update.html
https://github.com/facebook/hhvm/commit/c1c4bb0cf9e076aafaf4ff3515556ef9faf906f3
Published: 2021-03-11T00:55:20
Last Modified: 2024-08-04T06:54:00.541Z
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