CVE-2024-42269: netfilter: iptables: Fix potential null-ptr-deref in ip6table_nat_table_init().
First published: Sat Aug 17 2024(Updated: )
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().
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Linux kernel | >=5.15<6.1.104 | |
| Linux Linux kernel | >=6.2<6.6.45 | |
| Linux Linux kernel | >=6.7<6.10.4 | |
| Linux Linux kernel | =6.11-rc1 | |
| debian/linux | 5.10.223-1 5.10.226-1 6.1.115-1 6.1.112-1 6.11.5-1 6.11.7-1 |
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Reference Links
- 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
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-42269
- https://nvd.nist.gov/vuln/detail/CVE-2024-42269
- https://launchpad.net/bugs/cve/CVE-2024-42269
- https://security-tracker.debian.org/tracker/CVE-2024-42269
- https://ubuntu.com/security/CVE-2024-42269
- https://git.kernel.org/linus/c22921df777de5606f1047b1345b8d22ef1c0b34
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