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FacebookCVE-2020-1893

HistoryMar 03, 2020 - 3:15 p.m.

CVE-2020-1893

2020-03-0315:15:12

CWE-125

facebook

web.nvd.nist.gov

cve-2020-1893

security

json

dos

hhvm 4.45.0

hhvm 4.44.0

hhvm 4.43.0

hhvm 4.42.0

hhvm 4.41.0

hhvm 4.40.0

hhvm 4.39.0

hhvm 4.38.0

hhvm 4.33.0

hhvm 4.32.0

hhvm 4.9.0

hhvm 4.8.7

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

AI Score

7.6

Confidence

High

EPSS

0.001

Percentile

45.6%

JSON

Insufficient boundary checks when decoding JSON in TryParse reads out of bounds memory, potentially leading to DOS. This issue affects HHVM 4.45.0, 4.44.0, 4.43.0, 4.42.0, 4.41.0, 4.40.0, 4.39.0, versions between 4.33.0 and 4.38.0 (inclusive), versions between 4.9.0 and 4.32.0 (inclusive), and versions prior to 4.8.7.

Affected configurations

Nvd

Node

facebookhhvmRange<4.8.7

facebookhhvmRange4.9.0–4.32.0

facebookhhvmRange4.33.0–4.38.0

facebookhhvmMatch4.39.0

facebookhhvmMatch4.40.0

facebookhhvmMatch4.41.0

facebookhhvmMatch4.42.0

facebookhhvmMatch4.43.0

facebookhhvmMatch4.44.0

facebookhhvmMatch4.45.0

VendorProductVersionCPE
facebookhhvm4.41.0cpe:/a:facebook:hhvm:4.41.0:::
facebookhhvm4.43.0cpe:/a:facebook:hhvm:4.43.0:::
facebookhhvm4.45.0cpe:/a:facebook:hhvm:4.45.0:::
facebookhhvm4.42.0cpe:/a:facebook:hhvm:4.42.0:::
facebookhhvm4.39.0cpe:/a:facebook:hhvm:4.39.0:::
facebookhhvm4.44.0cpe:/a:facebook:hhvm:4.44.0:::
facebookhhvm4.40.0cpe:/a:facebook:hhvm:4.40.0:::
facebookhhvmcpe:/a:facebook:hhvm::::

Vendor	Product	Version	CPE
facebook	hhvm	4.41.0	cpe:/a:facebook:hhvm:4.41.0:::
facebook	hhvm	4.43.0	cpe:/a:facebook:hhvm:4.43.0:::
facebook	hhvm	4.45.0	cpe:/a:facebook:hhvm:4.45.0:::
facebook	hhvm	4.42.0	cpe:/a:facebook:hhvm:4.42.0:::
facebook	hhvm	4.39.0	cpe:/a:facebook:hhvm:4.39.0:::
facebook	hhvm	4.44.0	cpe:/a:facebook:hhvm:4.44.0:::
facebook	hhvm	4.40.0	cpe:/a:facebook:hhvm:4.40.0:::
facebook	hhvm		cpe:/a:facebook:hhvm::::

CNA Affected

[
  {
    "product": "HHVM",
    "vendor": "Facebook",
    "versions": [
      {
        "status": "affected",
        "version": "4.45.1"
      },
      {
        "status": "affected",
        "version": "4.45.0"
      },
      {
        "status": "affected",
        "version": "4.44.1"
      },
      {
        "status": "affected",
        "version": "4.44.0"
      },
      {
        "status": "affected",
        "version": "4.43.1"
      },
      {
        "status": "affected",
        "version": "4.43.0"
      },
      {
        "status": "affected",
        "version": "4.42.1"
      },
      {
        "status": "affected",
        "version": "4.42.0"
      },
      {
        "status": "affected",
        "version": "4.41.1"
      },
      {
        "status": "affected",
        "version": "4.41.0"
      },
      {
        "status": "affected",
        "version": "4.40.1"
      },
      {
        "status": "affected",
        "version": "4.40.0"
      },
      {
        "status": "affected",
        "version": "4.39.1"
      },
      {
        "status": "affected",
        "version": "4.39.0"
      },
      {
        "status": "affected",
        "version": "4.38.1"
      },
      {
        "lessThan": "unspecified",
        "status": "affected",
        "version": "4.33.0",
        "versionType": "custom"
      },
      {
        "status": "affected",
        "version": "4.32.1"
      },
      {
        "lessThan": "unspecified",
        "status": "affected",
        "version": "4.9.0",
        "versionType": "custom"
      },
      {
        "status": "affected",
        "version": "4.8.7"
      },
      {
        "lessThanOrEqual": "4.8.6",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  }
]

References

github.com/facebook/hhvm/commit/bd586671a3c22eb2f07e55f11b3ce64e1f7961e7

hhvm.com/blog/2020/02/20/security-update.html

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

AI Score

7.6

Confidence

High

EPSS

0.001

Percentile

45.6%

JSON

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