CVE-2024-44983: netfilter: flowtable: validate vlan header
First published: Wed Sep 04 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: netfilter: flowtable: validate vlan header Ensure there is sufficient room to access the protocol field of the VLAN header, validate it once before the flowtable lookup. ===================================================== BUG: KMSAN: uninit-value in nf_flow_offload_inet_hook+0x45a/0x5f0 net/netfilter/nf_flow_table_inet.c:32 nf_flow_offload_inet_hook+0x45a/0x5f0 net/netfilter/nf_flow_table_inet.c:32 nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline] nf_hook_slow+0xf4/0x400 net/netfilter/core.c:626 nf_hook_ingress include/linux/netfilter_netdev.h:34 [inline] nf_ingress net/core/dev.c:5440 [inline]
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Linux kernel | >=5.13<5.15.166 | |
| Linux Linux kernel | >=5.16<6.1.107 | |
| Linux Linux kernel | >=6.2<6.6.48 | |
| Linux Linux kernel | >=6.7<6.10.7 | |
| Linux Linux kernel | =6.11-rc1 | |
| Linux Linux kernel | =6.11-rc2 | |
| Linux Linux kernel | =6.11-rc3 | |
| Linux Linux kernel | =6.11-rc4 | |
| debian/linux | 5.10.223-1 5.10.226-1 6.1.115-1 6.1.112-1 6.11.7-1 6.11.9-1 |
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Reference Links
- https://git.kernel.org/stable/c/0279c35d242d037abeb73d60d06a6d1bb7f672d9
- https://git.kernel.org/stable/c/043a18bb6cf16adaa2f8642acfde6e8956a9caaa
- https://git.kernel.org/stable/c/6ea14ccb60c8ab829349979b22b58a941ec4a3ee
- https://git.kernel.org/stable/c/c05155cc455785916164aa5e1b4605a2ae946537
- https://git.kernel.org/stable/c/d9384ae7aec46036d248d1c2c2757e471ab486c3
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-44983
- https://nvd.nist.gov/vuln/detail/CVE-2024-44983
- https://launchpad.net/bugs/cve/CVE-2024-44983
- https://security-tracker.debian.org/tracker/CVE-2024-44983
- https://ubuntu.com/security/CVE-2024-44983
- https://git.kernel.org/linus/6ea14ccb60c8ab829349979b22b58a941ec4a3ee
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