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cvelistGoogleCVELIST:CVE-2021-22570
HistoryJan 26, 2022 - 12:00 a.m.

CVE-2021-22570 Nullptr Dereference in Protobuf

2022-01-2600:00:00
CWE-476
Google
www.cve.org
10
cve-2021-22570
protobuf
symbol parsing
unchecked call
proto file
upgrade

CVSS3

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

AI Score

6.5

Confidence

High

EPSS

0

Percentile

15.9%

Nullptr dereference when a null char is present in a proto symbol. The symbol is parsed incorrectly, leading to an unchecked call into the proto file’s name during generation of the resulting error message. Since the symbol is incorrectly parsed, the file is nullptr. We recommend upgrading to version 3.15.0 or greater.

CNA Affected

[
  {
    "vendor": "Google LLC",
    "product": "Protobuf",
    "versions": [
      {
        "version": "unspecified",
        "lessThan": "3.15.0",
        "status": "affected",
        "versionType": "custom"
      }
    ]
  }
]

References

CVSS3

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

AI Score

6.5

Confidence

High

EPSS

0

Percentile

15.9%