CVE-2024-44983

netfilter: flowtable: validate vlan header

Description

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]

Category

7.1
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.05%
Affected: Linux Linux
Affected: Linux Linux
Published at:
Updated at:

References

Link Tags
https://git.kernel.org/stable/c/c05155cc455785916164aa5e1b4605a2ae946537 patch
https://git.kernel.org/stable/c/d9384ae7aec46036d248d1c2c2757e471ab486c3 patch
https://git.kernel.org/stable/c/0279c35d242d037abeb73d60d06a6d1bb7f672d9 patch
https://git.kernel.org/stable/c/043a18bb6cf16adaa2f8642acfde6e8956a9caaa patch
https://git.kernel.org/stable/c/6ea14ccb60c8ab829349979b22b58a941ec4a3ee patch

Frequently Asked Questions

What is the severity of CVE-2024-44983?
CVE-2024-44983 has been scored as a high severity vulnerability.
How to fix CVE-2024-44983?
To fix CVE-2024-44983, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2024-44983 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2024-44983 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2024-44983?
CVE-2024-44983 affects Linux Linux, Linux Linux.
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