// For flags

CVE-2021-22570

Nullptr Dereference in Protobuf

Severity Score

5.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

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.

Una desreferencia de puntero Null cuando un char nulo está presente en un símbolo proto. El símbolo es analizado incorrectamente, conllevando a una llamada no comprobada al nombre del archivo proto durante la generación del mensaje de error resultante. Como el símbolo es analizado incorrectamente, el archivo es nullptr. Es recomendado actualizar a versión 3.15.0 o superior

A flaw was found in protobuf. The vulnerability occurs due to incorrect parsing of a NULL character in the proto symbol and leads to a Null pointer dereference. This flaw allows an attacker to execute unauthorized code or commands, read memory, modify memory.

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Local
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2021-01-05 CVE Reserved
  • 2022-01-26 CVE Published
  • 2023-05-16 EPSS Updated
  • 2024-08-03 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-476: NULL Pointer Dereference
CAPEC
References (13)
URL Tag Source
https://github.com/protocolbuffers/protobuf/releases/tag/v3.15.0 Release Notes
https://lists.debian.org/debian-lts-announce/2023/04/msg00019.html Mailing List
https://security.netapp.com/advisory/ntap-20220429-0005 Third Party Advisory
https://www.oracle.com/security-alerts/cpuapr2022.html Third Party Advisory
URL Date SRC
URL Date SRC
URL Date SRC
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3DVUZPALAQ34TQP6KFNLM4IZS6B32XSA 2023-11-07
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5PAGL5M2KGYPN3VEQCRJJE6NA7D5YG5X 2023-11-07
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BTRGBRC5KGCA4SK5MUNLPYJRAGXMBIYY 2023-11-07
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IFX6KPNOFHYD6L4XES5PCM3QNSKZBOTQ 2023-11-07
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KQJB6ZPRLKV6WCMX2PRRRQBFAOXFBK6B 2023-11-07
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MRWRAXAFR3JR7XCFWTHC2KALSZKWACCE 2023-11-07
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NVTWVQRB5OCCTMKEQFY5MYED3DXDVSLP 2023-11-07
https://access.redhat.com/security/cve/CVE-2021-22570 2024-05-28
https://bugzilla.redhat.com/show_bug.cgi?id=2049429 2024-05-28
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Google
Search vendor "Google"
 Protobuf
Search vendor "Google" for product "Protobuf"
 < 3.15.0
Search vendor "Google" for product "Protobuf" and version " < 3.15.0"
-
Affected
Debian
Search vendor "Debian"
 Debian Linux
Search vendor "Debian" for product "Debian Linux"
 9.0
Search vendor "Debian" for product "Debian Linux" and version "9.0"
-
Affected
Debian
Search vendor "Debian"
 Debian Linux
Search vendor "Debian" for product "Debian Linux"
 10.0
Search vendor "Debian" for product "Debian Linux" and version "10.0"
-
Affected
Debian
Search vendor "Debian"
 Debian Linux
Search vendor "Debian" for product "Debian Linux"
 11.0
Search vendor "Debian" for product "Debian Linux" and version "11.0"
-
Affected
Fedoraproject
Search vendor "Fedoraproject"
 Fedora
Search vendor "Fedoraproject" for product "Fedora"
 34
Search vendor "Fedoraproject" for product "Fedora" and version "34"
-
Affected
Fedoraproject
Search vendor "Fedoraproject"
 Fedora
Search vendor "Fedoraproject" for product "Fedora"
 35
Search vendor "Fedoraproject" for product "Fedora" and version "35"
-
Affected
Fedoraproject
Search vendor "Fedoraproject"
 Fedora
Search vendor "Fedoraproject" for product "Fedora"
 36
Search vendor "Fedoraproject" for product "Fedora" and version "36"
-
Affected
Oracle
Search vendor "Oracle"
 Mysql
Search vendor "Oracle" for product "Mysql"
 <= 8.0.28
Search vendor "Oracle" for product "Mysql" and version " <= 8.0.28"
-
Affected
Netapp
Search vendor "Netapp"
 Active Iq Unified Manager
Search vendor "Netapp" for product "Active Iq Unified Manager"
-vmware_vsphere
Affected
Netapp
Search vendor "Netapp"
 Active Iq Unified Manager
Search vendor "Netapp" for product "Active Iq Unified Manager"
-windows
Affected
Netapp
Search vendor "Netapp"
 Oncommand Insight
Search vendor "Netapp" for product "Oncommand Insight"
--
Affected
Netapp
Search vendor "Netapp"
 Oncommand Workflow Automation
Search vendor "Netapp" for product "Oncommand Workflow Automation"
--
Affected
Netapp
Search vendor "Netapp"
 Snapcenter
Search vendor "Netapp" for product "Snapcenter"
--
Affected