netfilter: ctnetlink: use helper function to calculate expect ID
Priority LOW 24CWE-401Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Partial Red Hat: 4 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-401.
Summary
In the Linux kernel, the following vulnerability has been resolved: netfilter: ctnetlink: use helper function to calculate expect ID Delete expectation path is missing a call to the nf_expect_get_id() helper function to calculate the expectation ID, otherwise LSB of the expectation object address is leaked to userspace.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00239 15th percentileScored 2026-11-07
Fix Partial Linux (Linux): 4.19.320, 3.17, 4.5 +10Red Hat: 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 | 4.19.44 to before 4.19.320; 3.16.72 to before 3.17; 4.4.191 to before 4.5; 4.9.190 to before 4.10; 4.14.120 to before 4.15; 5.0.17 to before 5.1 | 4.19.320, 3.17, 4.5, 4.10, 4.15, 5.1 | Patch available | CNA |
| Linux | Linux | 5.1 and later | 4.19.320, 5.4.282, 5.10.224, 5.15.165, 6.1.103, 6.6.44, 6.10.3, 6.11 | Patch available | CNA |
- Linux VendorLinux Affected 4.19.44 to before 4.19.320; 3.16.72 to before 3.17; 4.4.191 to before 4.5; 4.9.190 to before 4.10; 4.14.120 to before 4.15; 5.0.17 to before 5.1 Fixed in 4.19.320, 3.17, 4.5, 4.10, 4.15, 5.1 Patch available CNA
- Linux VendorLinux Affected 5.1 and later Fixed in 4.19.320, 5.4.282, 5.10.224, 5.15.165, 6.1.103, 6.6.44, 6.10.3, 6.11 Patch available CNA
CPE configurations NVD · 3
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 5.2 to before 5.4.282; 5.5 to before 5.10.224; 5.11 to before 5.15.165; 5.16 to before 6.1.103; 6.2 to before 6.6.44; 6.7 to before 6.10.3 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:4.19.320:*:*:*:*:*:*:* | 4.19.320 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:5.1:*:*:*:*:*:*:* | 5.1 | Vulnerable | Linux |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 5.2 to before 5.4.282; 5.5 to before 5.10.224; 5.11 to before 5.15.165; 5.16 to before 6.1.103; 6.2 to before 6.6.44; 6.7 to before 6.10.3 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:4.19.320:*:*:*:*:*:*:* Versions 4.19.320 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:5.1:*:*:*:*:*:*:* Versions 5.1 Vulnerable ·Linux
Remediation
- Fix · CNA Linux (Linux) Fixed in 4.19.320, 3.17, 4.5, 4.10, 4.15, 5.1
- Fix · CNA Linux (Linux) Fixed in 4.19.320, 5.4.282, 5.10.224, 5.15.165, 6.1.103, 6.6.44, 6.10.3, 6.11
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 planned: Will not fix |
Timeline
- 2026-10-02 Threatist record created from CVE-2024-44944
- 2026-10-03 Alias added: GHSA-xq7r-x85c-27jm
References
Patch 8
- https://git.kernel.org/stable/c/66e7650dbbb8e236e781c670b167edc81e771450
- https://git.kernel.org/stable/c/64c0b8e64be8368617ef08dfc59a3160563a1435
- https://git.kernel.org/stable/c/eb4ca1a97e08ff5b920664ba292e576257e2d184
- https://git.kernel.org/stable/c/5e2c24f7b0911b15c29aefce760bcf770542fb61
- https://git.kernel.org/stable/c/24f407042cf90b0872de667460230d8d50c06c39
- https://git.kernel.org/stable/c/27662b46f2adaa52c1665a82af4b21c42c4337fd
- https://git.kernel.org/stable/c/74de442b8e12a207c07953ee068009a7701aff8f
- https://git.kernel.org/stable/c/782161895eb4ac45cf7cfa8db375bd4766cb8299
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-2024-44944 · CVE Program
- CVE-2024-44944 · NVD
- FIRST EPSS
- GHSA-xq7r-x85c-27jm · GitHub Advisory Database · CC BY 4.0
- CVE-2024-44944 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences