CVE-2021-22924

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Summary

CVECVE-2021-22924
StatePUBLISHED
Assignerhackerone
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-08-05 21:15:11 UTC
Updated2026-10-14 11:16:53 UTC
Descriptionlibcurl 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.

Risk And Classification

Primary CVSS: v3.1 3.7 LOW from [email protected]

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

Problem Types: CWE-20 | CWE-706 | CWE-20 Improper Input Validation (CWE-20)

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary3.7LOWCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
3.1ADPDECLARED3.7LOWCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary3.7LOWCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
2.0[email protected]Primary4.3AV:N/AC:M/Au:N/C:P/I:N/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Medium
Authentication
None
Confidentiality
Partial
Integrity
None
Availability
None

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Debian Debian Linux 10.0 All All All
Operating System Debian Debian Linux 11.0 All All All
Operating System Debian Debian Linux 9.0 All All All
Operating System Fedoraproject Fedora 33 All All All
Application Haxx Libcurl All All All All
Application Netapp Cloud Backup - All All All
Application Netapp Clustered Data Ontap - All All All
Operating System Netapp Solidfire Baseboard Management Controller Firmware - All All All
Application Netapp Solidfire Hci Management Node - All All All
Application Oracle Mysql Server All All All All
Application Oracle Mysql Server All All All All
Application Oracle Peoplesoft Enterprise Peopletools 8.57 All All All
Application Oracle Peoplesoft Enterprise Peopletools 8.58 All All All
Application Oracle Peoplesoft Enterprise Peopletools 8.59 All All All
Hardware Siemens Logo! Cmr2020 - All All All
Operating System Siemens Logo! Cmr2020 Firmware All All All All
Hardware Siemens Logo! Cmr2040 - All All All
Operating System Siemens Logo! Cmr2040 Firmware All All All All
Hardware Siemens Ruggedcomrm 1224 Lte - All All All
Operating System Siemens Ruggedcomrm 1224 Lte Firmware All All All All
Hardware Siemens Scalance M804pb - All All All
Operating System Siemens Scalance M804pb Firmware All All All All
Hardware Siemens Scalance M812-1 - All All All
Operating System Siemens Scalance M812-1 Firmware All All All All
Hardware Siemens Scalance M816-1 - All All All
Operating System Siemens Scalance M816-1 Firmware All All All All
Hardware Siemens Scalance M826-2 - All All All
Operating System Siemens Scalance M826-2 Firmware All All All All
Hardware Siemens Scalance M874-2 - All All All
Operating System Siemens Scalance M874-2 Firmware All All All All
Hardware Siemens Scalance M874-3 - All All All
Operating System Siemens Scalance M874-3 Firmware All All All All
Hardware Siemens Scalance M876-3 - All All All
Operating System Siemens Scalance M876-3 Firmware All All All All
Hardware Siemens Scalance M876-4 - All All All
Operating System Siemens Scalance M876-4 Firmware All All All All
Hardware Siemens Scalance Mum856-1 - All All All
Operating System Siemens Scalance Mum856-1 Firmware All All All All
Hardware Siemens Scalance S615 - All All All
Operating System Siemens Scalance S615 Firmware All All All All
Hardware Siemens Simatic Cp 1543-1 - All All All
Operating System Siemens Simatic Cp 1543-1 Firmware All All All All
Hardware Siemens Simatic Cp 1545-1 - All All All
Operating System Siemens Simatic Cp 1545-1 Firmware All All All All
Hardware Siemens Simatic Rtu3010c - All All All
Operating System Siemens Simatic Rtu3010c Firmware All All All All
Hardware Siemens Simatic Rtu3030c - All All All
Operating System Siemens Simatic Rtu3030c Firmware All All All All
Hardware Siemens Simatic Rtu3031c - All All All
Operating System Siemens Simatic Rtu3031c Firmware All All All All
Hardware Siemens Simatic Rtu 3041c - All All All
Operating System Siemens Simatic Rtu 3041c Firmware All All All All
Application Siemens Sinec Infrastructure Network Services All All All All
Application Siemens Sinema Remote Connect All All All All
Application Siemens Sinema Remote Connect Server All All All All
Hardware Siemens Siplus Net Cp 1543-1 - All All All
Operating System Siemens Siplus Net Cp 1543-1 Firmware All All All All
Application Splunk Universal Forwarder All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na Https//github.com/curl/curl affected curl 7.10.4 to and include curl 7.77.0 Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP affected V3.1.0 V3.1.5 custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP affected V3.1.0 V3.1.5 custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP affected V3.1.0 V3.1.5 custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP affected V3.1.0 V3.1.5 custom Not specified
ADP Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP affected V3.1.0 V3.1.5 custom Not specified

References

ReferenceSourceLinkTags
cert-portal.siemens.com/productcert/html/ssa-398330.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
Oracle Critical Patch Update Advisory - October 2021 af854a3a-2127-422b-91ae-364da2661108 www.oracle.com Patch, Third Party Advisory
cert-portal.siemens.com/productcert/pdf/ssa-484086.pdf af854a3a-2127-422b-91ae-364da2661108 cert-portal.siemens.com Third Party Advisory
cert-portal.siemens.com/productcert/html/ssa-389290.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
cert-portal.siemens.com/productcert/html/ssa-484086.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
[SECURITY] Fedora 33 Update: curl-7.71.1-10.fc33 - package-announce - Fedora Mailing-Lists af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org Mailing List, Third Party Advisory
lists.apache.org/thread.html/r61db8e7dcb56dc000a5387a88f7a473bacec5ee01b9ff3f5... af854a3a-2127-422b-91ae-364da2661108 lists.apache.org Mailing List, Third Party Advisory
[SECURITY] [DLA 3085-1] curl security update af854a3a-2127-422b-91ae-364da2661108 lists.debian.org Mailing List, Third Party Advisory
Oracle Critical Patch Update Advisory - January 2022 af854a3a-2127-422b-91ae-364da2661108 www.oracle.com Patch, Third Party Advisory
lists.apache.org/thread.html/r61db8e7dcb56dc000a5387a88f7a473bacec5ee01b9ff3f5... af854a3a-2127-422b-91ae-364da2661108 lists.apache.org Mailing List, Third Party Advisory
lists.apache.org/thread.html/rbf4ce74b0d1fa9810dec50ba3ace0caeea677af7c27a9711... af854a3a-2127-422b-91ae-364da2661108 lists.apache.org Mailing List, Third Party Advisory
HackerOne af854a3a-2127-422b-91ae-364da2661108 hackerone.com Exploit, Issue Tracking, Patch, Third Party Advisory
Debian -- Security Information -- DSA-5197-1 curl af854a3a-2127-422b-91ae-364da2661108 www.debian.org Third Party Advisory
August 2021 cURL/libcURL Vulnerabilities in NetApp Products | NetApp Product Security af854a3a-2127-422b-91ae-364da2661108 security.netapp.com Third Party Advisory
cert-portal.siemens.com/productcert/html/ssa-732250.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
cert-portal.siemens.com/productcert/pdf/ssa-732250.pdf af854a3a-2127-422b-91ae-364da2661108 cert-portal.siemens.com Third Party Advisory
cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf af854a3a-2127-422b-91ae-364da2661108 cert-portal.siemens.com Patch, Third Party Advisory
lists.apache.org/thread.html/rbf4ce74b0d1fa9810dec50ba3ace0caeea677af7c27a9711... af854a3a-2127-422b-91ae-364da2661108 lists.apache.org Mailing List, Third Party Advisory
[SECURITY] [DLA 2734-1] curl security update af854a3a-2127-422b-91ae-364da2661108 lists.debian.org Mailing List, Third Party Advisory
[SECURITY] Fedora 33 Update: curl-7.71.1-10.fc33 - package-announce - Fedora Mailing-Lists MITRE lists.fedoraproject.org
Pony Mail! MITRE lists.apache.org
Pony Mail! MITRE lists.apache.org
Pony Mail! MITRE lists.apache.org
Pony Mail! MITRE lists.apache.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 159396 Oracle Enterprise Linux Security Update for curl (ELSA-2021-3582)
  • 178759 Debian Security Update for curl (DLA 2734-1)
  • 180909 Debian Security Update for curl (DSA 5197-1)
  • 180969 Debian Security Update for curl (DLA 3085-1)
  • 183343 Debian Security Update for curl (CVE-2021-22924)
  • 198441 Ubuntu Security Notification for curl vulnerabilities (USN-5021-1)
  • 239648 Red Hat Update for curl (RHSA-2021:3582)
  • 240217 Red Hat Update for rh-dotnet31-curl (RHSA-2022:1354)
  • 281737 Fedora Security Update for curl (FEDORA-2021-83fdddca0f)
  • 281795 Fedora Security Update for curl (FEDORA-2021-5d21b90a30)
  • 296065 Oracle Solaris 11.4 Support Repository Update (SRU) 39.107.1 Missing (CPUOCT2021)
  • 352810 Amazon Linux Security Advisory for curl: ALAS-2021-1525
  • 352843 Amazon Linux Security Advisory for curl: ALAS2-2021-1700
  • 353095 Amazon Linux Security Advisory for curl : AL2012-2021-356
  • 376257 Oracle PeopleSoft Enterprise PeopleTools Product Multiple Vulnerabilities (CPUJAN2022)
  • 377386 Alibaba Cloud Linux Security Update for curl (ALINUX3-SA-2021:0070)
  • 378599 Splunk Enterprise Third Party Package Updates for June (SVD-2023-0613)
  • 378883 Splunk Enterprise August Third Party Package Updates (SVD-2023-0808)
  • 500136 Alpine Linux Security Update for curl
  • 503787 Alpine Linux Security Update for curl
  • 590938 Siemens Industrial Devices Multiple Vulnerabilities (SSA-732250)
  • 591406 Siemens SIMATIC S7-1500 CPU GNU/Linux subsystem Multiple Vulnerabilities (SSB-439005, ICSA-22-104-13)
  • 670699 EulerOS Security Update for curl (EulerOS-SA-2021-2457)
  • 670824 EulerOS Security Update for curl (EulerOS-SA-2021-2707)
  • 671008 EulerOS Security Update for curl (EulerOS-SA-2021-2682)
  • 690083 Free Berkeley Software Distribution (FreeBSD) Security Update for curl (aa646c01-ea0d-11eb-9b84-d4c9ef517024)
  • 750866 SUSE Enterprise Linux Security Update for curl (SUSE-SU-2021:2425-1)
  • 750872 SUSE Enterprise Linux Security Update for curl (SUSE-SU-2021:2440-1)
  • 750875 OpenSUSE Security Update for curl (openSUSE-SU-2021:2439-1)
  • 750888 SUSE Enterprise Linux Security Update for curl (SUSE-SU-2021:2462-1)
  • 750891 OpenSUSE Security Update for curl (openSUSE-SU-2021:1088-1)
  • 900298 CBL-Mariner Linux Security Update for curl 7.76.0
  • 901199 Common Base Linux Mariner (CBL-Mariner) Security Update for curl (6367-1)
  • 903709 Common Base Linux Mariner (CBL-Mariner) Security Update for curl (5212)
  • 940284 AlmaLinux Security Update for curl (ALSA-2021:3582)
  • 960794 Rocky Linux Security Update for curl (RLSA-2021:3582)

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