NULL pointer dereference in Google Protobuf
CVE-2021-22570
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…
EPSS: 0.027 (84.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Google Protobuf
- Google Llc Protobuf — versions unspecified
- Netapp Active_iq_unified_manager
- Netapp Oncommand_insight
- Netapp Oncommand_workflow_automation
- Netapp Snapcenter
- Oracle Mysql
- Debian Debian_linux — versions 9.0, 10.0, 11.0
- Fedoraproject Fedora — versions 34, 35, 36
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve-coordination@google.com (Third Party Advisory, Release Notes)
- cve-coordination@google.com (vendor-advisory)
- cve-coordination@google.com (vendor-advisory)
- cve-coordination@google.com (vendor-advisory)
- cve-coordination@google.com (vendor-advisory)
- cve-coordination@google.com (vendor-advisory)
- cve-coordination@google.com (vendor-advisory)
- cve-coordination@google.com (vendor-advisory)
- cve-coordination@google.com (Third Party Advisory)
- cve-coordination@google.com (Third Party Advisory)
Frequently asked questions
- What is CVE-2021-22570?
- CVE-2021-22570 is a medium-severity vulnerability in Google Protobuf, classified under NULL Pointer Dereference. CVSS score: 6.5/10. Published 2022-01-26.
- How severe is CVE-2021-22570?
- Medium severity. CVSS v3 base score is 6.5 out of 10.
- Is CVE-2021-22570 known to be exploited?
- 11 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.