VulnerabilityModified
CVE-2021-22924
libcurl keeps previously used connections in a connection pool for subsequenttransfers to reuse, if one of them matches the setup.Due to errors in the logic, the config matching function did not take 'issuercert' into account and it compared the…
LOW 3.7EPSS 6.27%
Does this matter?
Lower severity and a low EPSS score (6.27%). Track it; it rarely justifies an emergency change on its own.
Description
libcurl keeps previously used connections in a connection pool for subsequenttransfers to reuse, if one of them matches the setup.Due to errors in the logic, the config matching function did not take 'issuercert' into account and it compared the involved paths *case insensitively*,which could lead to libcurl reusing wrong connections.File paths are, or can be, case sensitive on many systems but not all, and caneven vary depending on used file systems.The comparison also didn't include the 'issuer cert' which a transfer can setto qualify how to verify the server certificate.
- CVSS 3.1
- 3.7 LOWCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
- EPSS
- 6.27% probability · 93th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-20, CWE-706
- Affected
- haxx/libcurl · fedoraproject/fedora · debian/debian linux · netapp/cloud backup · netapp/clustered data ontap · netapp/solidfire \& hci management node · netapp/solidfire baseboard management controller firmware · oracle/mysql server · oracle/peoplesoft enterprise peopletools · siemens/sinec infrastructure network services · siemens/sinema remote connect server · siemens/logo\! cmr2040 firmware · siemens/logo\! cmr2020 firmware · siemens/ruggedcomrm 1224 lte firmware · siemens/scalance m804pb firmware · siemens/scalance m812-1 firmware · siemens/scalance m816-1 firmware · siemens/scalance m826-2 firmware · siemens/scalance m874-2 firmware · siemens/scalance m874-3 firmware · +13 more
- Source
- support@hackerone.com
References
- https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdfPatch, Third Party Advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-484086.pdfThird Party Advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-732250.pdfThird Party Advisory
- https://hackerone.com/reports/1223565Exploit, Issue Tracking, Patch, Third Party Advisory
- https://lists.apache.org/thread.html/r61db8e7dcb56dc000a5387a88f7a473bacec5ee01b9ff3f55308aacc%40%3Cdev.kafka.apache.org%3EMailing List, Third Party Advisory
- https://lists.apache.org/thread.html/r61db8e7dcb56dc000a5387a88f7a473bacec5ee01b9ff3f55308aacc%40%3Cusers.kafka.apache.org%3EMailing List, Third Party Advisory
- https://lists.apache.org/thread.html/rbf4ce74b0d1fa9810dec50ba3ace0caeea677af7c27a97111c06ccb7%40%3Cdev.kafka.apache.org%3EMailing List, Third Party Advisory
- https://lists.apache.org/thread.html/rbf4ce74b0d1fa9810dec50ba3ace0caeea677af7c27a97111c06ccb7%40%3Cusers.kafka.apache.org%3EMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/08/msg00017.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/08/msg00017.htmlMailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FRUCW2UVNYUDZF72DQLFQR4PJEC6CF7V/Mailing List, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20210902-0003/Third Party Advisory
- https://www.debian.org/security/2022/dsa-5197Third Party Advisory
- https://www.oracle.com/security-alerts/cpujan2022.htmlPatch, Third Party Advisory
- https://www.oracle.com/security-alerts/cpuoct2021.htmlPatch, Third Party Advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdfPatch, Third Party Advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-484086.pdfThird Party Advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-732250.pdfThird Party Advisory
- https://hackerone.com/reports/1223565Exploit, Issue Tracking, Patch, Third Party Advisory
- https://lists.apache.org/thread.html/r61db8e7dcb56dc000a5387a88f7a473bacec5ee01b9ff3f55308aacc%40%3Cdev.kafka.apache.org%3EMailing List, Third Party Advisory
- https://lists.apache.org/thread.html/r61db8e7dcb56dc000a5387a88f7a473bacec5ee01b9ff3f55308aacc%40%3Cusers.kafka.apache.org%3EMailing List, Third Party Advisory
- https://lists.apache.org/thread.html/rbf4ce74b0d1fa9810dec50ba3ace0caeea677af7c27a97111c06ccb7%40%3Cdev.kafka.apache.org%3EMailing List, Third Party Advisory
- https://lists.apache.org/thread.html/rbf4ce74b0d1fa9810dec50ba3ace0caeea677af7c27a97111c06ccb7%40%3Cusers.kafka.apache.org%3EMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/08/msg00017.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/08/msg00017.htmlMailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FRUCW2UVNYUDZF72DQLFQR4PJEC6CF7V/Mailing List, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20210902-0003/Third Party Advisory
- https://www.debian.org/security/2022/dsa-5197Third Party Advisory
- https://www.oracle.com/security-alerts/cpujan2022.htmlPatch, Third Party Advisory
- https://www.oracle.com/security-alerts/cpuoct2021.htmlPatch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.