CVE-2021-22922: Input Validation
First published: Mon Jul 12 2021(Updated: )
A flaw was found in curl in the way curl handles a file hash mismatch after downloading content using the Metalink feature. This flaw allows malicious actors controlling a hosting server to trick users into downloading malicious content. The highest threat from this vulnerability is to integrity.
Credit: support@hackerone.com support@hackerone.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/curl | <0:7.61.1-18.el8_4.1 | 0:7.61.1-18.el8_4.1 |
| redhat/curl | <0:7.61.1-12.el8_2.3 | 0:7.61.1-12.el8_2.3 |
| redhat/curl | <7.78.0 | 7.78.0 |
| Haxx Curl | >=7.27.0<7.78.0 | |
| Fedoraproject Fedora | =33 | |
| Netapp Cloud Backup | ||
| NetApp Clustered Data ONTAP | ||
| Netapp Hci Management Node | ||
| Netapp Solidfire | ||
| Oracle Mysql Server | >=5.7.0<=5.7.35 | |
| Oracle Mysql Server | >=8.0.0<=8.0.26 | |
| Siemens Sinec Infrastructure Network Services | <1.0.1.1 | |
| 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 | ||
| All of | ||
| Netapp H300s Firmware | ||
| Netapp H300s | ||
| All of | ||
| Netapp H500s Firmware | ||
| Netapp H500s | ||
| All of | ||
| Netapp H700s Firmware | ||
| Netapp H700s | ||
| All of | ||
| Netapp H300e Firmware | ||
| Netapp H300e | ||
| All of | ||
| Netapp H500e Firmware | ||
| Netapp H500e | ||
| All of | ||
| Netapp H700e Firmware | ||
| Netapp H700e | ||
| All of | ||
| Netapp H410s Firmware | ||
| Netapp H410s | ||
| Splunk Universal Forwarder | >=8.2.0<8.2.12 | |
| Splunk Universal Forwarder | >=9.0.0<9.0.6 | |
| Splunk Universal Forwarder | =9.1.0 |
Remedy
This flaw can be mitigated by upgrading the affected curl utility to version 7.78.0 or by disabling the metalink feature in your current build
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Reference Links
- https://www.cve.org/CVERecord?id=CVE-2021-22922 https://nvd.nist.gov/vuln/detail/CVE-2021-22922 https://curl.se/docs/CVE-2021-22922.html
- https://bugzilla.redhat.com/show_bug.cgi?id=1981435
- https://access.redhat.com/errata/RHSA-2021:3582
- https://access.redhat.com/errata/RHSA-2021:3903
- https://access.redhat.com/security/cve/cve-2021-22922
- https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf
- https://hackerone.com/reports/1213175
- https://lists.apache.org/thread.html/r61db8e7dcb56dc000a5387a88f7a473bacec5ee01b9ff3f55308aacc@%3Cdev.kafka.apache.org%3E
- https://lists.apache.org/thread.html/r61db8e7dcb56dc000a5387a88f7a473bacec5ee01b9ff3f55308aacc@%3Cusers.kafka.apache.org%3E
- https://lists.apache.org/thread.html/rbf4ce74b0d1fa9810dec50ba3ace0caeea677af7c27a97111c06ccb7@%3Cdev.kafka.apache.org%3E
- https://lists.apache.org/thread.html/rbf4ce74b0d1fa9810dec50ba3ace0caeea677af7c27a97111c06ccb7@%3Cusers.kafka.apache.org%3E
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FRUCW2UVNYUDZF72DQLFQR4PJEC6CF7V/
- https://security.gentoo.org/glsa/202212-01
- https://security.netapp.com/advisory/ntap-20210902-0003/
- https://www.oracle.com/security-alerts/cpuoct2021.html
- https://github.com/curl/curl/commit/b5fdbe848bc3d
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1984325
- https://curl.se/docs/CVE-2021-22922.html
- https://lists.apache.org/thread.html/r61db8e7dcb56dc000a5387a88f7a473bacec5ee01b9ff3f55308aacc%40%3Cdev.kafka.apache.org%3E
- https://lists.apache.org/thread.html/r61db8e7dcb56dc000a5387a88f7a473bacec5ee01b9ff3f55308aacc%40%3Cusers.kafka.apache.org%3E
- https://lists.apache.org/thread.html/rbf4ce74b0d1fa9810dec50ba3ace0caeea677af7c27a97111c06ccb7%40%3Cdev.kafka.apache.org%3E
- https://lists.apache.org/thread.html/rbf4ce74b0d1fa9810dec50ba3ace0caeea677af7c27a97111c06ccb7%40%3Cusers.kafka.apache.org%3E
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FRUCW2UVNYUDZF72DQLFQR4PJEC6CF7V/
Frequently Asked Questions
What is CVE-2021-22922?
CVE-2021-22922 is a vulnerability in curl that allows a file hash mismatch after downloading content using the metalink feature.
How does curl handle the file hash mismatch vulnerability (CVE-2021-22922)?
When curl is instructed to download content using the metalink feature, the contents are verified against a hash provided in the metalink XML file.
What is the severity of CVE-2021-22922?
CVE-2021-22922 has a severity rating of 6.5 (medium).
Which versions of curl are affected by CVE-2021-22922?
The vulnerability affects curl versions up to but excluding 7.78.0.
Where can I find more information about CVE-2021-22922?
More information about CVE-2021-22922 can be found on the GitHub commit, Red Hat Bugzilla, and the curl website.
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