CVE-2021-24036
Critical
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.
SeverityCritical
CVSS9.8
Exploit probability—
Product
Facebook Folly
PublishedJul 23, 2021
First seenJul 23, 2021
Weakness typeCWE-122CWE-122
How to fix
Update
- facebook folly2021.07.22.00 or later
- facebook hhvm4.80.5 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| facebook folly | v < 2021.07.22.00 | 2021.07.22.00 |
| facebook hhvm | v < 4.80.5, 4.81.0 ≤ v ≤ 4.102.1, 4.103.0 ≤ v ≤ 4.113.0, 4.114.0, 4.115.0, 4.116.0, 4.117.0, 4.118.0, 4.118.1 | 4.80.5 |
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