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Status published
Medium
CVE-2021-22570
Nullptr Dereference in Protobuf
Vulnerability 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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
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
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Affected Vendor
Google LLC
View all reports →Affected Software
Protobuf
Vulnerable Versions:
unspecified
Timeline
Official Publish:
January 26th, 2022
Last Modified:
April 21st, 2025
Added to House:
July 21st, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H