CVE-2024-36270

netfilter: tproxy: bail out if IP has been disabled on the device

Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: tproxy: bail out if IP has been disabled on the device syzbot reports: general protection fault, probably for non-canonical address 0xdffffc0000000003: 0000 [#1] PREEMPT SMP KASAN PTI KASAN: null-ptr-deref in range [0x0000000000000018-0x000000000000001f] [..] RIP: 0010:nf_tproxy_laddr4+0xb7/0x340 net/ipv4/netfilter/nf_tproxy_ipv4.c:62 Call Trace: nft_tproxy_eval_v4 net/netfilter/nft_tproxy.c:56 [inline] nft_tproxy_eval+0xa9a/0x1a00 net/netfilter/nft_tproxy.c:168 __in_dev_get_rcu() can return NULL, so check for this.

Category

5.5
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.07%
Affected: Linux Linux
Affected: Linux Linux
Published at:
Updated at:

References

Link Tags
https://git.kernel.org/stable/c/10f0af5234dafd03d2b75233428ec3f11cf7e43d patch
https://git.kernel.org/stable/c/07eeedafc59c45fe5de43958128542be3784764c patch
https://git.kernel.org/stable/c/6fe5af4ff06db3d4d80e07a19356640428159f03 patch
https://git.kernel.org/stable/c/caf3a8afb5ea00db6d5398adf148d5534615fd80 patch
https://git.kernel.org/stable/c/570b4c52096e62fda562448f5760fd0ff06110f0 patch
https://git.kernel.org/stable/c/819bfeca16eb9ad647ddcae25e7e12c30612147c patch
https://git.kernel.org/stable/c/21a673bddc8fd4873c370caf9ae70ffc6d47e8d3 patch

Frequently Asked Questions

What is the severity of CVE-2024-36270?
CVE-2024-36270 has been scored as a medium severity vulnerability.
How to fix CVE-2024-36270?
To fix CVE-2024-36270, 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-2024-36270 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2024-36270 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-2024-36270?
CVE-2024-36270 affects Linux Linux, Linux Linux.
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