CVE-2024-42269
Published: August 22, 2024Last modified: August 22, 2024
Description
In the Linux kernel, the following vulnerability has been resolved: netfilter: iptables: Fix potential null-ptr-deref in ip6table_nat_table_init(). ip6table_nat_table_init() accesses net->gen->ptr[ip6table_nat_net_ops.id], but the function is exposed to user space before the entry is allocated via register_pernet_subsys(). Let's call register_pernet_subsys() before xt_register_template().
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 5.5 |
| Attack Vector | LOCAL |
| Attack complexity | LOW |
| Privileges required | LOW |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | NONE |
| Integrity impact | NONE |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | linux-lts | Fixed (6.1.104-r0) |
| Stream | linux-lts | Fixed (6.6.58-r0) |
References
- https://git.kernel.org/stable/c/419ee6274c5153b89c4393c1946faa4c3cad4f9e
- https://git.kernel.org/stable/c/87dba44e9471b79b255d0736858a897332db9226
- https://git.kernel.org/stable/c/91b6df6611b7edb28676c4f63f90c56c30d3e601
- https://git.kernel.org/stable/c/c22921df777de5606f1047b1345b8d22ef1c0b34
- https://git.kernel.org/stable/c/e85b9b6a87be4cb3710082038b677e97f2389003