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cveFacebookCVE-2020-1918
HistoryMar 10, 2021 - 4:15 p.m.

CVE-2020-1918

2021-03-1016:15:14
CWE-127
CWE-125
facebook
web.nvd.nist.gov
29
6
cve-2020-1918
in-memory
file operations
fopen
data uri
memory
hhvm
security
vulnerability

CVSS2

5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

EPSS

0.002

Percentile

55.1%

JSON

In-memory file operations (ie: using fopen on a data URI) did not properly restrict negative seeking, allowing for the reading of memory prior to the in-memory buffer. This issue affects HHVM versions prior to 4.56.3, all versions between 4.57.0 and 4.80.1, all versions between 4.81.0 and 4.93.1, and versions 4.94.0, 4.95.0, 4.96.0, 4.97.0, 4.98.0.

Affected configurations

Nvd
Node
facebookhhvmRange<4.56.3
OR
facebookhhvmRange4.57.0–4.80.2
OR
facebookhhvmRange4.81.0–4.93.2
OR
facebookhhvmMatch4.94.0
OR
facebookhhvmMatch4.95.0
OR
facebookhhvmMatch4.96.0
OR
facebookhhvmMatch4.97.0
OR
facebookhhvmMatch4.98.0
VendorProductVersionCPE
facebookhhvm*cpe:2.3:a:facebook:hhvm:*:*:*:*:*:*:*:*
facebookhhvm4.94.0cpe:2.3:a:facebook:hhvm:4.94.0:*:*:*:*:*:*:*
facebookhhvm4.95.0cpe:2.3:a:facebook:hhvm:4.95.0:*:*:*:*:*:*:*
facebookhhvm4.96.0cpe:2.3:a:facebook:hhvm:4.96.0:*:*:*:*:*:*:*
facebookhhvm4.97.0cpe:2.3:a:facebook:hhvm:4.97.0:*:*:*:*:*:*:*
facebookhhvm4.98.0cpe:2.3:a:facebook:hhvm:4.98.0:*:*:*:*:*:*:*

CNA Affected

[
  {
    "product": "HHVM",
    "vendor": "Facebook",
    "versions": [
      {
        "lessThan": "unspecified",
        "status": "unaffected",
        "version": "4.98.1",
        "versionType": "custom"
      },
      {
        "status": "affected",
        "version": "4.98.0"
      },
      {
        "lessThan": "unspecified",
        "status": "unaffected",
        "version": "4.97.1",
        "versionType": "custom"
      },
      {
        "status": "affected",
        "version": "4.97.0"
      },
      {
        "lessThan": "unspecified",
        "status": "unaffected",
        "version": "4.96.1",
        "versionType": "custom"
      },
      {
        "status": "affected",
        "version": "4.96.0"
      },
      {
        "lessThan": "unspecified",
        "status": "unaffected",
        "version": "4.95.1",
        "versionType": "custom"
      },
      {
        "status": "affected",
        "version": "4.95.0"
      },
      {
        "lessThan": "unspecified",
        "status": "unaffected",
        "version": "4.94.1",
        "versionType": "custom"
      },
      {
        "status": "affected",
        "version": "4.94.0"
      },
      {
        "lessThan": "unspecified",
        "status": "unaffected",
        "version": "4.93.2",
        "versionType": "custom"
      },
      {
        "lessThan": "unspecified",
        "status": "affected",
        "version": "4.81.0",
        "versionType": "custom"
      },
      {
        "lessThan": "unspecified",
        "status": "unaffected",
        "version": "4.80.2",
        "versionType": "custom"
      },
      {
        "lessThan": "unspecified",
        "status": "affected",
        "version": "4.57.0",
        "versionType": "custom"
      },
      {
        "lessThan": "unspecified",
        "status": "unaffected",
        "version": "4.56.3",
        "versionType": "custom"
      },
      {
        "lessThan": "4.56.3",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  }
]

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CVSS2

5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

EPSS

0.002

Percentile

55.1%

JSON
Related for CVE-2020-1918
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