netfilter: complete validation of user input
Priority LOW 31Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · None · High
- Fix status
- Partial Red Hat: 12 fixed, 4 without a fix
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat.
Summary
In the Linux kernel, the following vulnerability has been resolved: netfilter: complete validation of user input In my recent commit, I missed that do_replace() handlers use copy_from_sockptr() (which I fixed), followed by unsafe copy_from_sockptr_offset() calls. In all functions, we can perform the @optlen validation before even calling xt_alloc_table_info() with the following check: if ((u64)optlen < (u64)tmp.size + sizeof(tmp)) return -EINVAL;
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0024 15th percentileScored 2026-11-07
Fix Partial Linux (Linux): 5.10.216, 5.15.156, 6.1.87 +2Red Hat: 4 advisoriesRed Hat: 12 fixed, 4 without a fix
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Linux | Linux | 5.10.215 to before 5.10.216; 5.15.154 to before 5.15.156; 6.1.85 to before 6.1.87; 6.6.26 to before 6.6.28; 6.8.5 to before 6.8.7 | 5.10.216, 5.15.156, 6.1.87, 6.6.28, 6.8.7 | Patch available | CNA |
- Linux VendorLinux Affected 5.10.215 to before 5.10.216; 5.15.154 to before 5.15.156; 6.1.85 to before 6.1.87; 6.6.26 to before 6.6.28; 6.8.5 to before 6.8.7 Fixed in 5.10.216, 5.15.156, 6.1.87, 6.6.28, 6.8.7 Patch available CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 5.15.154 to before 5.15.156; 6.1.85 to before 6.1.87; 6.6.26 to before 6.6.28; 6.8.5 to before 6.8.7 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:5.10.215:*:*:*:*:*:*:* | 5.10.215 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.9:rc3:*:*:*:*:*:* | 6.9 rc3 | Vulnerable | Linux |
| cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* | 10.0 | Vulnerable | Debian |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 5.15.154 to before 5.15.156; 6.1.85 to before 6.1.87; 6.6.26 to before 6.6.28; 6.8.5 to before 6.8.7 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:5.10.215:*:*:*:*:*:*:* Versions 5.10.215 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.9:rc3:*:*:*:*:*:* Versions 6.9 rc3 Vulnerable ·Linux
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* Versions 10.0 Vulnerable ·Debian
Remediation
- Fix · CNA Linux (Linux) Fixed in 5.10.216, 5.15.156, 6.1.87, 6.6.28, 6.8.7
Red Hat 4 advisories
- RHSA-2024:5928 Released 2024-08-28 · Red Hat rating Importantkernel security update
- Red Hat Enterprise Linux AppStream (v. 9) kernel-64k-debug-devel-5.14.0-427.33.1.el9_4, kernel-64k-debug-devel-matched-5.14.0-427.33.1.el9_4, kernel-64k-devel-5.14.0-427.33.1.el9_4 +11
- Red Hat Enterprise Linux BaseOS (v. 9) bpftool-7.3.0-427.33.1.el9_4, kernel-5.14.0-427.33.1.el9_4, kernel-64k-5.14.0-427.33.1.el9_4 +29
- Red Hat Enterprise Linux CRB (v. 9) kernel-tools-libs-devel-5.14.0-427.33.1.el9_4, libperf-5.14.0-427.33.1.el9_4
- Red Hat Enterprise Linux NFV (v. 9) kernel-rt-5.14.0-427.33.1.el9_4, kernel-rt-core-5.14.0-427.33.1.el9_4, kernel-rt-debug-5.14.0-427.33.1.el9_4 +11
- Red Hat Enterprise Linux RT (v. 9) kernel-rt-5.14.0-427.33.1.el9_4, kernel-rt-core-5.14.0-427.33.1.el9_4, kernel-rt-debug-5.14.0-427.33.1.el9_4 +9
- RHSA-2024:5101 Released 2024-08-08 · Red Hat rating Importantkernel security update
- Red Hat Enterprise Linux BaseOS (v. 8) bpftool-4.18.0-553.16.1.el8_10, kernel-4.18.0-553.16.1.el8_10, kernel-abi-stablelists-4.18.0-553.16.1.el8_10 +19
- Red Hat Enterprise Linux CRB (v. 8) kernel-tools-libs-devel-4.18.0-553.16.1.el8_10
- RHSA-2024:5066 Released 2024-08-07 · Red Hat rating Moderatekernel security update
- Red Hat CodeReady Linux Builder EUS (v.9.2) kernel-tools-libs-devel-5.14.0-284.77.1.el9_2
- Red Hat Enterprise Linux AppStream EUS (v.9.2) kernel-64k-debug-devel-5.14.0-284.77.1.el9_2, kernel-64k-debug-devel-matched-5.14.0-284.77.1.el9_2, kernel-64k-devel-5.14.0-284.77.1.el9_2 +9
- Red Hat Enterprise Linux BaseOS EUS (v.9.2) bpftool-7.0.0-284.77.1.el9_2, kernel-5.14.0-284.77.1.el9_2, kernel-64k-5.14.0-284.77.1.el9_2 +29
Show 1 more Red Hat advisories
- RHSA-2024:5067 Released 2024-08-07 · Red Hat rating Moderatekernel-rt security update
- Red Hat Enterprise Linux Real Time EUS (v.9.2) kernel-rt-5.14.0-284.77.1.rt14.362.el9_2, kernel-rt-core-5.14.0-284.77.1.rt14.362.el9_2, kernel-rt-debug-5.14.0-284.77.1.rt14.362.el9_2 +9
- Red Hat Enterprise Linux Real Time for NFV EUS (v.9.2) kernel-rt-5.14.0-284.77.1.rt14.362.el9_2, kernel-rt-core-5.14.0-284.77.1.rt14.362.el9_2, kernel-rt-debug-5.14.0-284.77.1.rt14.362.el9_2 +11
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 8 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux 9 | Affected | No fix yet |
| Red Hat CodeReady Linux Builder EUS (v.9.2) | Fixed | RHSA-2024:5066 |
| Red Hat Enterprise Linux AppStream (v. 9) | Fixed | RHSA-2024:5928 |
| Red Hat Enterprise Linux AppStream EUS (v.9.2) | Fixed | RHSA-2024:5066 |
| Red Hat Enterprise Linux BaseOS (v. 8) | Fixed | RHSA-2024:5101 |
| Red Hat Enterprise Linux BaseOS (v. 9) | Fixed | RHSA-2024:5928 |
| Red Hat Enterprise Linux BaseOS EUS (v.9.2) | Fixed | RHSA-2024:5066 |
| Red Hat Enterprise Linux CRB (v. 8) | Fixed | RHSA-2024:5101 |
| Red Hat Enterprise Linux CRB (v. 9) | Fixed | RHSA-2024:5928 |
| Red Hat Enterprise Linux NFV (v. 9) | Fixed | RHSA-2024:5928 |
| Red Hat Enterprise Linux RT (v. 9) | Fixed | RHSA-2024:5928 |
| Red Hat Enterprise Linux Real Time EUS (v.9.2) | Fixed | RHSA-2024:5067 |
| Red Hat Enterprise Linux Real Time for NFV EUS (v.9.2) | Fixed | RHSA-2024:5067 |
Not affected: 1 product
- Red Hat Enterprise Linux AppStream EUS (v.9.2)
Timeline
- 2026-10-02 Threatist record created from CVE-2024-35962
- 2026-10-03 Alias added: GHSA-j7rq-227r-98j4
References
Patch 6
- https://git.kernel.org/stable/c/cf4bc359b76144a3dd55d7c09464ef4c5f2b2b05
- https://git.kernel.org/stable/c/97dab36e57c64106e1c8ebd66cbf0d2d1e52d6b7
- https://git.kernel.org/stable/c/c760089aa98289b4b88a7ff5a62dd92845adf223
- https://git.kernel.org/stable/c/89242d9584c342cb83311b598d9e6b82572eadf8
- https://git.kernel.org/stable/c/562b7245131f6e9f1d280c8b5a8750f03edfc05c
- https://git.kernel.org/stable/c/65acf6e0501ac8880a4f73980d01b5d27648b956
More Linux Kernel vulnerabilities
- TI-2025-26358 tls: fix handling of zero-length records on the rx_list KEVCVSS 3.1CRITICAL 9.8
- TI-2026-38352 netfilter: bridge: make ebt_snat ARP rewrite writable KEVCVSS 3.1HIGH 8.8
- TI-2013-05264 The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the… KEVCVSS 3.1HIGH 8.8
- TI-2022-00125 Integer overflow in kernel KEVCVSS 3.1HIGH 8.4
- TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
- TI-2021-05514 Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE KEVCVSS 3.1HIGH 8.3
Sources
- CVE-2024-35962 · CVE Program
- CVE-2024-35962 · NVD
- FIRST EPSS
- GHSA-j7rq-227r-98j4 · GitHub Advisory Database · CC BY 4.0
- CVE-2024-35962 · Red Hat security data · CC BY 4.0
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