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Vulnerability Details : CVE-2021-22901

curl 7.75.0 through 7.76.1 suffers from a use-after-free vulnerability resulting in already freed memory being used when a TLS 1.3 session ticket arrives over a connection. A malicious server can use this in rare unfortunate circumstances to potentially reach remote code execution in the client. When libcurl at run-time sets up support for TLS 1.3 session tickets on a connection using OpenSSL, it stores pointers to the transfer in-memory object for later retrieval when a session ticket arrives. If the connection is used by multiple transfers (like with a reused HTTP/1.1 connection or multiplexed HTTP/2 connection) that first transfer object might be freed before the new session is established on that connection and then the function will access a memory buffer that might be freed. When using that memory, libcurl might even call a function pointer in the object, making it possible for a remote code execution if the server could somehow manage to get crafted memory content into the correct place in memory.
Publish Date : 2021-06-11 Last Update Date : 2022-05-13
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- CVSS Scores & Vulnerability Types

CVSS Score
6.8
Confidentiality Impact Partial (There is considerable informational disclosure.)
Integrity Impact Partial (Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Medium (The access conditions are somewhat specialized. Some preconditions must be satistified to exploit)
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Execute Code
CWE ID 416

- Products Affected By CVE-2021-22901

# Product Type Vendor Product Version Update Edition Language
1 Application Haxx Curl * * * * Version Details Vulnerabilities
2 Application Netapp Active Iq Unified Manager - * * * Version Details Vulnerabilities
3 Application Netapp Active Iq Unified Manager - * * * Version Details Vulnerabilities
4 Application Netapp Cloud Backup - * * * Version Details Vulnerabilities
5 Application Netapp Oncommand Insight - * * * Version Details Vulnerabilities
6 Application Netapp Oncommand Workflow Automation - * * * Version Details Vulnerabilities
7 Application Netapp Snapcenter - * * * Version Details Vulnerabilities
8 OS Netapp Solidfire Baseboard Management Controller Firmware - * * * Version Details Vulnerabilities
9 Application Netapp Solidfire \& Hci Management Node - * * * Version Details Vulnerabilities
10 Application Netapp Solidfire\, Enterprise Sds \& Hci Storage Node - * * * Version Details Vulnerabilities
11 Application Oracle Communications Cloud Native Core Binding Support Function 1.11.0 * * * Version Details Vulnerabilities
12 Application Oracle Communications Cloud Native Core Network Function Cloud Native Environment 1.10.0 * * * Version Details Vulnerabilities
13 Application Oracle Communications Cloud Native Core Network Repository Function 1.15.0 * * * Version Details Vulnerabilities
14 Application Oracle Communications Cloud Native Core Network Repository Function 1.15.1 * * * Version Details Vulnerabilities
15 Application Oracle Communications Cloud Native Core Network Slice Selection Function 1.8.0 * * * Version Details Vulnerabilities
16 Application Oracle Communications Cloud Native Core Service Communication Proxy 1.15.0 * * * Version Details Vulnerabilities
17 Application Oracle Essbase * * * * Version Details Vulnerabilities
18 Application Oracle Mysql Server * * * * Version Details Vulnerabilities
19 Application Siemens Sinec Infrastructure Network Services * * * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Haxx Curl 1
Netapp Active Iq Unified Manager 2
Netapp Cloud Backup 1
Netapp Oncommand Insight 1
Netapp Oncommand Workflow Automation 1
Netapp Snapcenter 1
Netapp Solidfire Baseboard Management Controller Firmware 1
Netapp Solidfire \& Hci Management Node 1
Netapp Solidfire\, Enterprise Sds \& Hci Storage Node 1
Oracle Communications Cloud Native Core Binding Support Function 1
Oracle Communications Cloud Native Core Network Function Cloud Native Environment 1
Oracle Communications Cloud Native Core Network Repository Function 2
Oracle Communications Cloud Native Core Network Slice Selection Function 1
Oracle Communications Cloud Native Core Service Communication Proxy 1
Oracle Essbase 1
Oracle Mysql Server 1
Siemens Sinec Infrastructure Network Services 1

- References For CVE-2021-22901

https://curl.se/docs/CVE-2021-22901.html
https://github.com/curl/curl/commit/7f4a9a9b2a49547eae24d2e19bc5c346e9026479
https://hackerone.com/reports/1180380
https://cert-portal.siemens.com/productcert/pdf/ssa-732250.pdf CONFIRM
https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf CONFIRM
https://www.oracle.com/security-alerts/cpujan2022.html
https://www.oracle.com/security-alerts/cpuapr2022.html
https://security.netapp.com/advisory/ntap-20210727-0007/ CONFIRM
https://security.netapp.com/advisory/ntap-20210723-0001/ CONFIRM
https://www.oracle.com//security-alerts/cpujul2021.html
N/A N/A

- Vulnerability Conditions

Vulnerability is valid if product versions listed below are used 0
Vulnerability is valid if product versions listed below are used 0
Vulnerability is valid if product versions listed below are used 0
Vulnerability is valid if product versions listed below are used 0
Vulnerability is valid if product versions listed below are used 0
Vulnerability is valid if product versions listed below are used 0
Vulnerability is valid if product versions listed below are used 0
Vulnerability is valid if product versions listed below are used 0
Vulnerability is valid if product versions listed below are used 0
Vulnerability is valid if product versions listed below are used 0
Vulnerability is valid if product versions listed below are used 0
Vulnerability is valid if product versions listed below are used 0

- Metasploit Modules Related To CVE-2021-22901

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)


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