Medium
Security advisory
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.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2021-22570
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 08:47 UTC · Revision 1
Source evidence
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.
osv:CVE-2021-22570
Complete source record
{
"id": "1d26d45480a2f78f26ec2c2de52f1641b5ecb69d35b5581a0e2362f2fffceef5",
"url": "https://osv.dev/vulnerability/CVE-2021-22570",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2021-22570",
"summary": "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.",
"evidence": "osv:CVE-2021-22570",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2021-22570",
"aliases": [
"CVE-2021-22570",
"GHSA-77rm-9x9h-xj3g",
"PYSEC-2022-48"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/mysql/mysql-server",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"last_affected": "6846e6b2f72931991cc9fd589dc9946ea2ab58c9"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:oracle:mysql:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"last_affected": "8.0.28"
}
],
"source": "CPE_RANGE"
}
]
}
}
],
"versions": [
"mysql-cluster-8.0.28",
"mysql-8.0.28",
"mysql-5.1.4",
"mysql-4.0.4",
"mysql-4.0.2",
"mysql-3.23.36",
"mysql-3.23.33",
"mysql-3.23.32",
"mysql-3.23.31",
"mysql-3.23.30-gamma",
"mysql-3.23.28-gamma",
"mysql-3.23.22-beta"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-22570.json"
}
},
{
"ranges": [
{
"repo": "https://github.com/protocolbuffers/protobuf",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "ae50d9b9902526efd6c7a1907d09739f959c6297"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:google:protobuf:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "3.15.0"
}
],
"source": "CPE_RANGE"
},
{
"range": [
{
"fixed": "ae50d9b9902526efd6c7a1907d09739f959c6297"
}
],
"source": "REFERENCES_TAG",
"original_tag": "v3.15.0"
}
]
}
}
],
"versions": [
"v3.15.0-rc2",
"v3.15.0-rc1",
"3.15.0-rc1",
"v3.12.3",
"v3.0.0-beta-3-pre-1",
"v3.0.0-beta-2",
"v3.0.0-beta-1-bzl-fix",
"v3.0.0-beta-1",
"v3.0.0-alpha-4",
"v3.0.0-alpha-3",
"v2.6.1rc1",
"v2.6.0"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-22570.json"
}
}
],
"modified": "2026-10-24T10:50:09.229770302Z",
"provider": "osv",
"references": [
"https://lists.debian.org/debian-lts-announce/2023/04/msg00019.html",
"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/5PAGL5M2KGYPN3VEQCRJJE6NA7D5YG5X/",
"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/IFX6KPNOFHYD6L4XES5PCM3QNSKZBOTQ/",
"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://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NVTWVQRB5OCCTMKEQFY5MYED3DXDVSLP/",
"https://github.com/protocolbuffers/protobuf/releases/tag/v3.15.0",
"https://security.netapp.com/advisory/ntap-20220429-0005/",
"https://www.oracle.com/security-alerts/cpuapr2022.html"
],
"provider_metadata": {
"unresolved_ranges": [
{
"cpes": [
"cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
"cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*",
"cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"
],
"vendor_product": "debian:debian_linux",
"extracted_events": [
{
"range": [
{
"introduced": "9.0"
},
{
"last_affected": "9.0"
},
{
"introduced": "10.0"
},
{
"last_affected": "10.0"
},
{
"introduced": "11.0"
},
{
"last_affected": "11.0"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*",
"cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*",
"cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*"
],
"vendor_product": "fedoraproject:fedora",
"extracted_events": [
{
"range": [
{
"introduced": "34"
},
{
"last_affected": "34"
},
{
"introduced": "35"
},
{
"last_affected": "35"
},
{
"introduced": "36"
},
{
"last_affected": "36"
}
],
"source": "CPE_STRING"
}
]
}
]
}
},
"related_cves": [
{
"value": "CVE-2021-22570",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 442021,
"published_at": "2022-01-26T14:15:08.067+00:00"
}