CVE-2021-24036

Published Jul 23, 2021

Last updated 2 years ago

CVSS critical 9.8

Overview

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.
Source: cve-assign@fb.com
NVD status: Analyzed

Risk scores

CVSS 3.1

Type: Primary
Base score: 9.8
Impact score: 5.9
Exploitability score: 3.9
Vector string: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Severity: CRITICAL

CVSS 2.0

Type: Primary
Base score: 7.5
Impact score: 6.4
Exploitability score: 10
Vector string: AV:N/AC:L/Au:N/C:P/I:P/A:P

Weaknesses

nvd@nist.gov: CWE-190
cve-assign@fb.com: CWE-122

Hype score: Not currently trending

Configurations

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            "matchCriteriaId": "ED848EC8-F695-4D35-B067-D9E726DB8279",
            "versionEndExcluding": "2021.07.22.00"
          },
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            "vulnerable": true,
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            "versionEndExcluding": "4.80.5"
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            "versionEndIncluding": "4.102.1",
            "versionStartIncluding": "4.81.0"
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            "versionEndIncluding": "4.113.0",
            "versionStartIncluding": "4.103.0"
          },
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            "vulnerable": true,
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            "vulnerable": true,
            "matchCriteriaId": "9BDA3CE0-633D-43A7-8B88-E0A1F046BC47"
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            "vulnerable": true,
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          },
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            "vulnerable": true,
            "matchCriteriaId": "A93EB623-9A2B-4554-AC52-BB23E85A0CB2"
          },
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            "criteria": "cpe:2.3:a:facebook:hhvm:4.118.0:*:*:*:*:*:*:*",
            "vulnerable": true,
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          },
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            "vulnerable": true,
            "matchCriteriaId": "73A1E792-0EB5-40F8-A4D6-E6ECAABC8AE5"
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]

Overview

Risk scores

CVSS 3.1

CVSS 2.0

Weaknesses

Social media

Configurations

References