Buffer overflow in Facebook Folly
CVE-2021-24036
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…
Vulnerability class: Buffer Overflow
EPSS: 0.033 (87.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Facebook Folly — versions v2021.07.22.00, unspecified
- Facebook Hhvm — versions 4.81.0, 4.114.1, 4.116.0
Weakness classification (CWE)
References
- cve-assign@fb.com (x_refsource_CONFIRM, Product, Vendor Advisory)
- cve-assign@fb.com (Patch, Third Party Advisory, x_refsource_MISC)
- cve-assign@fb.com (x_refsource_CONFIRM, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-24036?
- CVE-2021-24036 is a critical-severity vulnerability in Facebook Folly, classified under Heap-based Buffer Overflow. CVSS score: 9.8/10. Published 2021-07-23.
- How severe is CVE-2021-24036?
- Critical severity. CVSS v3 base score is 9.8 out of 10.