medium5.5
CVE-2021-3659
A NULL pointer dereference flaw was found in the Linux kernel’s IEEE 802.15.4 wireless networking subsystem in the way the user closes the LR-WPAN connection.
Impact
A NULL pointer dereference flaw was found in the Linux kernel’s IEEE 802.15.4 wireless networking subsystem in the way the user closes the LR-WPAN connection. This flaw allows a local user to crash the system. The highest threat from this vulnerability is to system availability.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Linux | Linux Kernel | before 5.12 |
| Fedoraproject | Fedora | Version 34 |
| Redhat | Enterprise Linux | Versions 7.0, 8.0 |
| Redhat | Enterprise Linux For Ibm Z Systems | Version 8.0 |
| Redhat | Enterprise Linux For Ibm Z Systems Eus | Version 8.6 |
| Redhat | Enterprise Linux For Power Little Endian Eus | Version 8.6 |
| Redhat | Enterprise Linux For Real Time | Version 8.0 |
| Redhat | Enterprise Linux For Real Time For Nfv | Version 8.0 |
| Redhat | Enterprise Linux For Real Time For Nfv Tus | Version 8.6 |
| Redhat | Enterprise Linux For Real Time Tus | Version 8.6 |
| Redhat | Enterprise Linux Server Aus | Version 8.6 |
| Redhat | Enterprise Linux Server Eus | Version 8.6 |
Weakness classification
References
- NVD record
- CVE.org record
- https://access.redhat.com/security/cve/CVE-2021-3659
- https://bugzilla.redhat.com/show_bug.cgi?id=1975949
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=1165affd484889d4986cf3b724318935a0b120d8
- https://access.redhat.com/security/cve/CVE-2021-3659
- https://bugzilla.redhat.com/show_bug.cgi?id=1975949
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=1165affd484889d4986cf3b724318935a0b120d8