Loading HuntDB...
Hunt
Vulnerability Intelligence by wss.sh
Home Daily Briefings High Impact CVEs Recent Exploits KEV Catalog GitHub Advisories Latest Updates Security News
Sign In Sign Up

CVE-2021-22570

MEDIUM
Published 2022-01-26T00:00:00.000Z
Actions:

Expert Analysis

Professional remediation guidance

Get tailored security recommendations from our analyst team for CVE-2021-22570. We'll provide specific mitigation strategies based on your environment and risk profile.

CVSS Score

V3.1
6.5
/10
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Base Score Metrics
Exploitability: N/A Impact: N/A

EPSS Score

v2025.03.14
0.001
probability
of exploitation in the wild

There is a 0.1% chance that this vulnerability will be exploited in the wild within the next 30 days.

Updated: 2025-06-25
Exploit Probability
Percentile: 0.353
Higher than 35.3% of all CVEs

Attack Vector Metrics

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED

Impact Metrics

Confidentiality
NONE
Integrity
NONE
Availability
HIGH

Description

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.

Available Exploits

No exploits available for this CVE.

Related News

No news articles found for this CVE.

Affected Products

Google LLC

Protobuf

Affected Versions:

unspecified

GitHub Security Advisories

Community-driven vulnerability intelligence from GitHub

✓ GitHub Reviewed HIGH

NULL Pointer Dereference in Protocol Buffers

GHSA-77rm-9x9h-xj3g

Advisory Details

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.

Affected Packages

NuGet Google.Protobuf
ECOSYSTEM: ≥0 <3.15.0
Packagist google/protobuf
ECOSYSTEM: ≥0 <3.15.0
Maven com.google.protobuf:protobuf-java
ECOSYSTEM: ≥0 <3.15.0
Go github.com/protocolbuffers/protobuf
ECOSYSTEM: ≥0 <3.15.0
PyPI protobuf
ECOSYSTEM: ≥0 <3.15.0

CVSS Scoring

CVSS Score

7.5

CVSS Vector

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

References

ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2021-22570
ADVISORY https://github.com/advisories/GHSA-77rm-9x9h-xj3g
PACKAGE https://github.com/protocolbuffers/protobuf
WEB https://github.com/protocolbuffers/protobuf/releases/tag/v3.15.0
WEB https://github.com/pypa/advisory-database/tree/main/vulns/protobuf/PYSEC-2022-48.yaml
WEB https://lists.debian.org/debian-lts-announce/2023/04/msg00019.html
WEB https://lists.fedoraproject.org/archives/list/[email protected]/message/3DVUZPALAQ34TQP6KFNLM4IZS6B32XSA
WEB https://lists.fedoraproject.org/archives/list/[email protected]/message/5PAGL5M2KGYPN3VEQCRJJE6NA7D5YG5X
WEB https://lists.fedoraproject.org/archives/list/[email protected]/message/BTRGBRC5KGCA4SK5MUNLPYJRAGXMBIYY
WEB https://lists.fedoraproject.org/archives/list/[email protected]/message/IFX6KPNOFHYD6L4XES5PCM3QNSKZBOTQ
WEB https://lists.fedoraproject.org/archives/list/[email protected]/message/KQJB6ZPRLKV6WCMX2PRRRQBFAOXFBK6B
WEB https://lists.fedoraproject.org/archives/list/[email protected]/message/MRWRAXAFR3JR7XCFWTHC2KALSZKWACCE
WEB https://lists.fedoraproject.org/archives/list/[email protected]/message/NVTWVQRB5OCCTMKEQFY5MYED3DXDVSLP
WEB https://security.netapp.com/advisory/ntap-20220429-0005
WEB https://www.oracle.com/security-alerts/cpuapr2022.html

Advisory provided by GitHub Security Advisory Database. Published: January 27, 2022, Modified: October 21, 2024

References

https://github.com/protocolbuffers/protobuf/releases/tag/v3.15.0
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IFX6KPNOFHYD6L4XES5PCM3QNSKZBOTQ/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3DVUZPALAQ34TQP6KFNLM4IZS6B32XSA/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NVTWVQRB5OCCTMKEQFY5MYED3DXDVSLP/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BTRGBRC5KGCA4SK5MUNLPYJRAGXMBIYY/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5PAGL5M2KGYPN3VEQCRJJE6NA7D5YG5X/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KQJB6ZPRLKV6WCMX2PRRRQBFAOXFBK6B/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MRWRAXAFR3JR7XCFWTHC2KALSZKWACCE/
https://www.oracle.com/security-alerts/cpuapr2022.html
https://security.netapp.com/advisory/ntap-20220429-0005/
https://lists.debian.org/debian-lts-announce/2023/04/msg00019.html
Published: 2022-01-26T00:00:00.000Z
Last Modified: 2025-04-21T13:56:58.459Z
Copied to clipboard!