Vulnerability Description
A double-free flaw was found in the Linux kernel’s TUN/TAP device driver functionality in how a user registers the device when the register_netdevice function fails (NETDEV_REGISTER notifier). This flaw allows a local user to crash or potentially escalate their privileges on the system.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 5.5, < 5.10.136 |
Related Weaknesses (CWE)
References
- http://packetstormsecurity.com/files/171912/CentOS-Stream-9-Missing-Kernel-SecurThird Party AdvisoryVDB Entry
- https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=158b51Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2023/05/msg00006.htmlMailing ListThird Party Advisory
- https://security.netapp.com/advisory/ntap-20230526-0009/Third Party Advisory
- http://packetstormsecurity.com/files/171912/CentOS-Stream-9-Missing-Kernel-SecurThird Party AdvisoryVDB Entry
- https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=158b51Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2023/05/msg00006.htmlMailing ListThird Party Advisory
- https://security.netapp.com/advisory/ntap-20230526-0009/Third Party Advisory
FAQ
What is CVE-2022-4744?
CVE-2022-4744 is a vulnerability with a CVSS score of 7.8 (HIGH). A double-free flaw was found in the Linux kernel’s TUN/TAP device driver functionality in how a user registers the device when the register_netdevice function fails (NETDEV_REGISTER notifier). This fl...
How severe is CVE-2022-4744?
CVE-2022-4744 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2022-4744?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.