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FacebookCVE-2021-24029

HistoryMar 15, 2021 - 10:15 p.m.

CVE-2021-24029

2021-03-1522:15:13

CWE-617

facebook

web.nvd.nist.gov

mvfst

proxygen

packet of death

crash

failed assertion

quic

connection error

cve-2021-24029

nvd

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

EPSS

0.001

Percentile

45.6%

JSON

A packet of death scenario is possible in mvfst via a specially crafted message during a QUIC session, which causes a crash via a failed assertion. Per QUIC specification, this particular message should be treated as a connection error. This issue affects mvfst versions prior to commit a67083ff4b8dcbb7ee2839da6338032030d712b0 and proxygen versions prior to v2021.03.15.00.

Affected configurations

Nvd

Node

facebookmvfstRange<2021-03-13

facebookproxygenRange<2021.03.15.00

VendorProductVersionCPE
facebookmvfst*cpe:2.3:a:facebook:mvfst:*:*:*:*:*:*:*:*
facebookproxygen*cpe:2.3:a:facebook:proxygen:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
facebook	mvfst	*	cpe:2.3:a:facebook:mvfst::::::::
facebook	proxygen	*	cpe:2.3:a:facebook:proxygen::::::::

CNA Affected

[
  {
    "product": "mvfst",
    "vendor": "Facebook",
    "versions": [
      {
        "lessThan": "unspecified",
        "status": "unaffected",
        "version": "a67083ff4b8dcbb7ee2839da6338032030d712b0",
        "versionType": "custom"
      },
      {
        "lessThan": "a67083ff4b8dcbb7ee2839da6338032030d712b0",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  },
  {
    "product": "proxygen",
    "vendor": "Facebook",
    "versions": [
      {
        "lessThan": "unspecified",
        "status": "unaffected",
        "version": "v2021.03.15.00",
        "versionType": "custom"
      },
      {
        "lessThan": "v2021.03.15.00",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  }
]

References

github.com/facebookincubator/mvfst/commit/a67083ff4b8dcbb7ee2839da6338032030d712b0

www.facebook.com/security/advisories/cve-2021-24029

Social References

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

EPSS

0.001

Percentile

45.6%

JSON

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