Vulnerability Description
curl 7.7 through 7.76.1 suffers from an information disclosure when the `-t` command line option, known as `CURLOPT_TELNETOPTIONS` in libcurl, is used to send variable=content pairs to TELNET servers. Due to a flaw in the option parser for sending NEW_ENV variables, libcurl could be made to pass on uninitialized data from a stack based buffer to the server, resulting in potentially revealing sensitive internal information to the server using a clear-text network protocol.
CVSS Score
LOW
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Haxx | Curl | >= 7.7, <= 7.76.1 |
| Debian | Debian Linux | 9.0 |
| Fedoraproject | Fedora | 33 |
| Oracle | Communications Cloud Native Core Binding Support Function | 1.11.0 |
| Oracle | Communications Cloud Native Core Network Function Cloud Native Environment | 1.10.0 |
| Oracle | Communications Cloud Native Core Network Repository Function | 1.15.0 |
| Oracle | Communications Cloud Native Core Network Slice Selection Function | 1.8.0 |
| Oracle | Communications Cloud Native Core Service Communication Proxy | 1.15.0 |
| Oracle | Essbase | < 11.1.2.4.047 |
| Oracle | Mysql Server | < 5.7.34 |
| Siemens | Sinec Infrastructure Network Services | < 1.0.1.1 |
| Splunk | Universal Forwarder | >= 8.2.0, < 8.2.12 |
Related Weaknesses (CWE)
References
- http://www.openwall.com/lists/oss-security/2021/07/21/4Mailing ListPatchThird Party Advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdfPatchThird Party Advisory
- https://curl.se/docs/CVE-2021-22898.htmlExploitPatchVendor Advisory
- https://github.com/curl/curl/commit/39ce47f219b09c380b81f89fe54ac586c8db6bdePatchThird Party Advisory
- https://hackerone.com/reports/1176461ExploitIssue TrackingPatch
- https://lists.apache.org/thread.html/rc713534b10f9daeee2e0990239fa407e2118e4aa9eMailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/08/msg00017.htmlMailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/08/msg00017.htmlThird 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://www.debian.org/security/2022/dsa-5197Third Party Advisory
- https://www.oracle.com//security-alerts/cpujul2021.htmlPatchThird Party Advisory
- https://www.oracle.com/security-alerts/cpuapr2022.htmlPatchThird Party Advisory
- https://www.oracle.com/security-alerts/cpujan2022.htmlPatchThird Party Advisory
- http://www.openwall.com/lists/oss-security/2021/07/21/4Mailing ListPatchThird Party Advisory
FAQ
What is CVE-2021-22898?
CVE-2021-22898 is a vulnerability with a CVSS score of 3.1 (LOW). curl 7.7 through 7.76.1 suffers from an information disclosure when the `-t` command line option, known as `CURLOPT_TELNETOPTIONS` in libcurl, is used to send variable=content pairs to TELNET servers....
How severe is CVE-2021-22898?
CVE-2021-22898 has been rated LOW with a CVSS base score of 3.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-22898?
Check the references section above for vendor advisories and patch information. Affected products include: Haxx Curl, Debian Debian Linux, Fedoraproject Fedora, Oracle Communications Cloud Native Core Binding Support Function, Oracle Communications Cloud Native Core Network Function Cloud Native Environment.