Vulnerability Description
When sending data to an MQTT server, libcurl <= 7.73.0 and 7.78.0 could in some circumstances erroneously keep a pointer to an already freed memory area and both use that again in a subsequent call to send data and also free it *again*.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Haxx | Libcurl | >= 7.73.0, <= 7.78.0 |
| Fedoraproject | Fedora | 33 |
| Netapp | Cloud Backup | - |
| Netapp | Clustered Data Ontap | - |
| Oracle | Mysql Server | >= 5.7.0, <= 5.7.35 |
| Netapp | H300S Firmware | - |
| Netapp | H300S | - |
| Netapp | H500S Firmware | - |
| Netapp | H500S | - |
| Netapp | H700S Firmware | - |
| Netapp | H700S | - |
| Netapp | H300E Firmware | - |
| Netapp | H300E | - |
| Netapp | H500E Firmware | - |
| Netapp | H500E | - |
| Netapp | H700E Firmware | - |
| Netapp | H700E | - |
| Netapp | H410S Firmware | - |
| Netapp | H410S | - |
| Netapp | Solidfire Baseboard Management Controller Firmware | - |
Related Weaknesses (CWE)
References
- http://seclists.org/fulldisclosure/2022/Mar/29Mailing ListThird Party Advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdfPatchThird Party Advisory
- https://hackerone.com/reports/1269242ExploitPatchThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproMailing ListThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproMailing ListThird Party Advisory
- https://security.gentoo.org/glsa/202212-01Third Party Advisory
- https://security.netapp.com/advisory/ntap-20211029-0003/Third Party Advisory
- https://support.apple.com/kb/HT213183Third Party Advisory
- https://www.debian.org/security/2022/dsa-5197Third Party Advisory
- https://www.oracle.com/security-alerts/cpuoct2021.htmlPatchThird Party Advisory
- http://seclists.org/fulldisclosure/2022/Mar/29Mailing ListThird Party Advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdfPatchThird Party Advisory
- https://hackerone.com/reports/1269242ExploitPatchThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproMailing ListThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproMailing ListThird Party Advisory
FAQ
What is CVE-2021-22945?
CVE-2021-22945 is a vulnerability with a CVSS score of 9.1 (CRITICAL). When sending data to an MQTT server, libcurl <= 7.73.0 and 7.78.0 could in some circumstances erroneously keep a pointer to an already freed memory area and both use that again in a subsequent call to...
How severe is CVE-2021-22945?
CVE-2021-22945 has been rated CRITICAL with a CVSS base score of 9.1/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2021-22945?
Check the references section above for vendor advisories and patch information. Affected products include: Haxx Libcurl, Fedoraproject Fedora, Netapp Cloud Backup, Netapp Clustered Data Ontap, Oracle Mysql Server.