Description
In the Linux kernel, the following vulnerability has been resolved: ip6_vti: set netns_immutable on the fallback device. john1988 and Noam Rathaus reported that vti6_init_net() does not set the netns_immutable flag on the per-netns fallback tunnel device (ip6_vti0). Other similar tunnel drivers (like ip6_tunnel, sit, ip6_gre, and ip_tunnel) correctly set this flag during their fallback device initialization to prevent them from being moved to another network namespace.
CVSS breakdown
CVSS 3.1
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected products
- Linux / Linux61220ab349485d911083d0b7990ccd3db6c63297 – ecf8904067dcba0dad86ece80874841e60317885
- Linux / Linux61220ab349485d911083d0b7990ccd3db6c63297 – dcdce3bc9f08026ff3739ee7339e1bef526fc5f3
- Linux / Linux61220ab349485d911083d0b7990ccd3db6c63297 – d289d5307762d1838aaece22c6b6fcad9e8865f9
- Linux / Linux3.15 – 3.15
- Linux / Linux0 – 3.15
- Linux / Linux6.18.36 – 6.18.*
- Linux / Linux7.0.13 – 7.0.*
- Linux / Linux7.1 – *