Vulnerability Monitor

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CVE-2021-22898

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.

Published

2021-06-11T16:15:11.043

Last Modified

2024-11-21T05:50:52.103

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 3.1 (LOW)

CVSSv2 Vector

AV:N/AC:H/Au:N/C:P/I:N/A:N

Access Vector: NETWORK
Access Complexity: HIGH
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: NONE
Availability Impact: NONE

Exploitability Score

4.9

Impact Score

2.9

Weaknesses

Type: Secondary
CWE-200
Type: Primary
CWE-909

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	haxx	curl	≤ 7.76.1	Yes
Operating System	debian	debian_linux	9.0	Yes
Operating System	fedoraproject	fedora	33	Yes
Operating System	fedoraproject	fedora	34	Yes
Application	oracle	communications_cloud_native_core_binding_support_function	1.11.0	Yes
Application	oracle	communications_cloud_native_core_network_function_cloud_native_environment	1.10.0	Yes
Application	oracle	communications_cloud_native_core_network_repository_function	1.15.0	Yes
Application	oracle	communications_cloud_native_core_network_repository_function	1.15.1	Yes
Application	oracle	communications_cloud_native_core_network_slice_selection_function	1.8.0	Yes
Application	oracle	communications_cloud_native_core_service_communication_proxy	1.15.0	Yes
Application	oracle	essbase	< 11.1.2.4.047	Yes
Application	oracle	essbase	< 21.3	Yes
Application	oracle	mysql_server	< 5.7.34	Yes
Application	oracle	mysql_server	< 8.0.25	Yes
Application	siemens	sinec_infrastructure_network_services	< 1.0.1.1	Yes
Application	splunk	universal_forwarder	< 8.2.12	Yes
Application	splunk	universal_forwarder	< 9.0.6	Yes
Application	splunk	universal_forwarder	9.1.0	Yes

References

http://www.openwall.com/lists/oss-security/2021/07/21/4 Mailing List, Patch, Third Party Advisory ([email protected])
https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf Patch, Third Party Advisory ([email protected])
https://curl.se/docs/CVE-2021-22898.html Exploit, Patch, Vendor Advisory ([email protected])
https://github.com/curl/curl/commit/39ce47f219b09c380b81f89fe54ac586c8db6bde Patch, Third Party Advisory ([email protected])
https://hackerone.com/reports/1176461 Exploit, Issue Tracking, Patch, Third Party Advisory ([email protected])
https://lists.apache.org/thread.html/rc713534b10f9daeee2e0990239fa407e2118e4aa9e88a7041177497c%40%3Cissues.guacamole.apache.org%3E Mailing List, Third Party Advisory ([email protected])
https://lists.debian.org/debian-lts-announce/2021/08/msg00017.html Mailing List, Third Party Advisory ([email protected])
https://lists.debian.org/debian-lts-announce/2022/08/msg00017.html Third Party Advisory ([email protected])
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FRUCW2UVNYUDZF72DQLFQR4PJEC6CF7V/ Mailing List, Third Party Advisory ([email protected])
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/POOC3UV7V6L4CJ5KA2PTWTNUV5Y72T3Q/ Mailing List, Third Party Advisory ([email protected])
https://www.debian.org/security/2022/dsa-5197 Third Party Advisory ([email protected])
https://www.oracle.com//security-alerts/cpujul2021.html Patch, Third Party Advisory ([email protected])
https://www.oracle.com/security-alerts/cpuapr2022.html Patch, Third Party Advisory ([email protected])
https://www.oracle.com/security-alerts/cpujan2022.html Patch, Third Party Advisory ([email protected])
http://www.openwall.com/lists/oss-security/2021/07/21/4 Mailing List, Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://curl.se/docs/CVE-2021-22898.html Exploit, Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/curl/curl/commit/39ce47f219b09c380b81f89fe54ac586c8db6bde Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://hackerone.com/reports/1176461 Exploit, Issue Tracking, Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.apache.org/thread.html/rc713534b10f9daeee2e0990239fa407e2118e4aa9e88a7041177497c%40%3Cissues.guacamole.apache.org%3E Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.debian.org/debian-lts-announce/2021/08/msg00017.html Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.debian.org/debian-lts-announce/2022/08/msg00017.html Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FRUCW2UVNYUDZF72DQLFQR4PJEC6CF7V/ Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/POOC3UV7V6L4CJ5KA2PTWTNUV5Y72T3Q/ Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.debian.org/security/2022/dsa-5197 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.oracle.com//security-alerts/cpujul2021.html Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.oracle.com/security-alerts/cpuapr2022.html Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.oracle.com/security-alerts/cpujan2022.html Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)