CVE-2021-43267

Published on: 11/02/2021 12:00:00 AM UTC

Last Modified on: 11/29/2021 05:23:00 PM UTC

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

Certain versions of Fedora from Fedoraproject contain the following vulnerability:

An issue was discovered in net/tipc/crypto.c in the Linux kernel before 5.14.16. The Transparent Inter-Process Communication (TIPC) functionality allows remote attackers to exploit insufficient validation of user-supplied sizes for the MSG_CRYPTO message type.

  • CVE-2021-43267 has been assigned by URL Logo [email protected] to track the vulnerability - currently rated as CRITICAL severity.

CVSS3 Score: 9.8 - CRITICAL

Attack
Vector
Attack
Complexity
Privileges
Required
User
Interaction
NETWORK LOW NONE NONE
Scope Confidentiality
Impact
Integrity
Impact
Availability
Impact
UNCHANGED HIGH HIGH HIGH

CVSS2 Score: 7.5 - HIGH

Access
Vector
Access
Complexity
Authentication
NETWORK LOW NONE
Confidentiality
Impact
Integrity
Impact
Availability
Impact
PARTIAL PARTIAL PARTIAL

CVE References

Description Tags Link
[SECURITY] Fedora 35 Update: kernel-5.14.16-301.fc35 - package-announce - Fedora Mailing-Lists lists.fedoraproject.org
text/html
URL Logo FEDORA FEDORA-2021-a093973910
[SECURITY] Fedora 34 Update: kernel-5.14.16-201.fc34 - package-announce - Fedora Mailing-Lists lists.fedoraproject.org
text/html
URL Logo FEDORA FEDORA-2021-bdd146e463
CVE-2021-43267 Linux Kernel Vulnerability in NetApp Products | NetApp Product Security security.netapp.com
text/html
URL Logo CONFIRM security.netapp.com/advisory/ntap-20211125-0002/
tipc: fix size validations for the MSG_CRYPTO type · torvalds/[email protected] · GitHub github.com
text/html
URL Logo MISC github.com/torvalds/linux/commit/fa40d9734a57bcbfa79a280189799f76c88f7bb0
cdn.kernel.org
text/plain
URL Logo MISC cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14.16

Related QID Numbers

  • 198589 Ubuntu Security Notification for Linux kernel (OEM) Vulnerabilities (USN-5165-1)
  • 239884 Red Hat Update for kernel (RHSA-2021:4647)
  • 239887 Red Hat Update for kernel-rt (RHSA-2021:4648)
  • 239889 Red Hat Update for kpatch-patch (RHSA-2021:4644)
  • 239890 Red Hat Update for kernel security (RHSA-2021:4650)
  • 239891 Red Hat Update for kpatch-patch (RHSA-2021:4645)
  • 239892 Red Hat Update for kernel-rt (RHSA-2021:4646)
  • 282031 Fedora Security Update for kernel (FEDORA-2021-bdd146e463)

Exploit/POC from Github

trusty poc Provide it to legitimate people

Known Affected Configurations (CPE V2.3)

Type Vendor Product Version Update Edition Language
Operating
System
FedoraprojectFedora34AllAllAll
Operating
System
FedoraprojectFedora35AllAllAll
Operating
System
LinuxLinux KernelAllAllAllAll
HardwareNetappH300e-AllAllAll
Operating
System
NetappH300e Firmware-AllAllAll
HardwareNetappH300s-AllAllAll
Operating
System
NetappH300s Firmware-AllAllAll
HardwareNetappH410s-AllAllAll
Operating
System
NetappH410s Firmware-AllAllAll
HardwareNetappH500e-AllAllAll
Operating
System
NetappH500e Firmware-AllAllAll
HardwareNetappH500s-AllAllAll
Operating
System
NetappH500s Firmware-AllAllAll
HardwareNetappH700e-AllAllAll
Operating
System
NetappH700e Firmware-AllAllAll
HardwareNetappH700s-AllAllAll
Operating
System
NetappH700s Firmware-AllAllAll
  • cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*:
  • cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*:
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*:
  • cpe:2.3:h:netapp:h300e:-:*:*:*:*:*:*:*:
  • cpe:2.3:o:netapp:h300e_firmware:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:netapp:h300s:-:*:*:*:*:*:*:*:
  • cpe:2.3:o:netapp:h300s_firmware:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:netapp:h410s:-:*:*:*:*:*:*:*:
  • cpe:2.3:o:netapp:h410s_firmware:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:netapp:h500e:-:*:*:*:*:*:*:*:
  • cpe:2.3:o:netapp:h500e_firmware:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:netapp:h500s:-:*:*:*:*:*:*:*:
  • cpe:2.3:o:netapp:h500s_firmware:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:netapp:h700e:-:*:*:*:*:*:*:*:
  • cpe:2.3:o:netapp:h700e_firmware:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:netapp:h700s:-:*:*:*:*:*:*:*:
  • cpe:2.3:o:netapp:h700s_firmware:-:*:*:*:*:*:*:*:
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