octeontx2-af: avoid off-by-one read from userspace
Priority LOW 24CWE-193Published · 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: 10 fixed, 1 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-193 and the CVSS impact.
Summary
In the Linux kernel, the following vulnerability has been resolved: octeontx2-af: avoid off-by-one read from userspace We try to access count + 1 byte from userspace with memdup_user(buffer, count + 1). However, the userspace only provides buffer of count bytes and only these count bytes are verified to be okay to access. To ensure the copied buffer is NUL terminated, we use memdup_user_nul instead.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00238 14th percentileScored 2026-11-07
Fix Partial Linux (Linux): 5.10.217, 5.12, 5.15.159 +4Red Hat: 3 advisoriesRed Hat: 10 fixed, 1 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 | 5.10.20 to before 5.10.217; 5.11.3 to before 5.12 | 5.10.217, 5.12 | Patch available | CNA |
| Linux | Linux | 5.12 and later | 5.10.217, 5.15.159, 6.1.91, 6.6.31, 6.8.10, 6.9 | Patch available | CNA |
- Linux VendorLinux Affected 5.10.20 to before 5.10.217; 5.11.3 to before 5.12 Fixed in 5.10.217, 5.12 Patch available CNA
- Linux VendorLinux Affected 5.12 and later Fixed in 5.10.217, 5.15.159, 6.1.91, 6.6.31, 6.8.10, 6.9 Patch available CNA
CPE configurations NVD · 8
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 5.10.20 to before 5.10.217; 5.11.3 to before 5.15.159; 5.16 to before 6.1.91; 6.2 to before 6.6.31; 6.7 to before 6.8.10 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.9:rc1:*:*:*:*:*:* | 6.9 rc1 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.9:rc2:*:*:*:*:*:* | 6.9 rc2 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.9:rc3:*:*:*:*:*:* | 6.9 rc3 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.9:rc4:*:*:*:*:*:* | 6.9 rc4 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.9:rc5:*:*:*:*:*:* | 6.9 rc5 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.9:rc6:*:*:*:*:*:* | 6.9 rc6 | Vulnerable | Linux |
| cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* | 10.0 | Vulnerable | Debian |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 5.10.20 to before 5.10.217; 5.11.3 to before 5.15.159; 5.16 to before 6.1.91; 6.2 to before 6.6.31; 6.7 to before 6.8.10 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.9:rc1:*:*:*:*:*:* Versions 6.9 rc1 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.9:rc2:*:*:*:*:*:* Versions 6.9 rc2 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.9:rc3:*:*:*:*:*:* Versions 6.9 rc3 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.9:rc4:*:*:*:*:*:* Versions 6.9 rc4 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.9:rc5:*:*:*:*:*:* Versions 6.9 rc5 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.9:rc6:*:*:*:*:*:* Versions 6.9 rc6 Vulnerable ·Linux
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* Versions 10.0 Vulnerable ·Debian
Remediation
- Fix · CNA Linux (Linux) Fixed in 5.10.217, 5.12
- Fix · CNA Linux (Linux) Fixed in 5.10.217, 5.15.159, 6.1.91, 6.6.31, 6.8.10, 6.9
Red Hat 3 advisories
- RHSA-2024:4583 Released 2024-07-17 · Red Hat rating Importantkernel security update
- Red Hat Enterprise Linux AppStream (v. 9) kernel-64k-debug-devel-5.14.0-427.26.1.el9_4, kernel-64k-debug-devel-matched-5.14.0-427.26.1.el9_4, kernel-64k-devel-5.14.0-427.26.1.el9_4 +11
- Red Hat Enterprise Linux BaseOS (v. 9) bpftool-7.3.0-427.26.1.el9_4, kernel-5.14.0-427.26.1.el9_4, kernel-64k-5.14.0-427.26.1.el9_4 +29
- Red Hat Enterprise Linux CRB (v. 9) kernel-tools-libs-devel-5.14.0-427.26.1.el9_4, libperf-5.14.0-427.26.1.el9_4
- Red Hat Enterprise Linux NFV (v. 9) kernel-rt-5.14.0-427.26.1.el9_4, kernel-rt-core-5.14.0-427.26.1.el9_4, kernel-rt-debug-5.14.0-427.26.1.el9_4 +11
- Red Hat Enterprise Linux RT (v. 9) kernel-rt-5.14.0-427.26.1.el9_4, kernel-rt-core-5.14.0-427.26.1.el9_4, kernel-rt-debug-5.14.0-427.26.1.el9_4 +9
- RHSA-2024:4108 Released 2024-06-26 · Red Hat rating Importantkernel security and bug fix update
- Red Hat CodeReady Linux Builder EUS (v.9.2) kernel-tools-libs-devel-5.14.0-284.71.1.el9_2
- Red Hat Enterprise Linux AppStream EUS (v.9.2) kernel-64k-debug-devel-5.14.0-284.71.1.el9_2, kernel-64k-debug-devel-matched-5.14.0-284.71.1.el9_2, kernel-64k-devel-5.14.0-284.71.1.el9_2 +10
- Red Hat Enterprise Linux BaseOS EUS (v.9.2) bpftool-7.0.0-284.71.1.el9_2, kernel-5.14.0-284.71.1.el9_2, kernel-64k-5.14.0-284.71.1.el9_2 +29
- RHSA-2024:4106 Released 2024-06-26 · Red Hat rating Importantkernel-rt security update
- Red Hat Enterprise Linux Real Time EUS (v.9.2) kernel-rt-5.14.0-284.71.1.rt14.356.el9_2, kernel-rt-core-5.14.0-284.71.1.rt14.356.el9_2, kernel-rt-debug-5.14.0-284.71.1.rt14.356.el9_2 +9
- Red Hat Enterprise Linux Real Time for NFV EUS (v.9.2) kernel-rt-5.14.0-284.71.1.rt14.356.el9_2, kernel-rt-core-5.14.0-284.71.1.rt14.356.el9_2, kernel-rt-debug-5.14.0-284.71.1.rt14.356.el9_2 +11
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 9 | Affected | No fix yet |
| Red Hat CodeReady Linux Builder EUS (v.9.2) | Fixed | RHSA-2024:4108 |
| Red Hat Enterprise Linux AppStream (v. 9) | Fixed | RHSA-2024:4583 |
| Red Hat Enterprise Linux AppStream EUS (v.9.2) | Fixed | RHSA-2024:4108 |
| Red Hat Enterprise Linux BaseOS (v. 9) | Fixed | RHSA-2024:4583 |
| Red Hat Enterprise Linux BaseOS EUS (v.9.2) | Fixed | RHSA-2024:4108 |
| Red Hat Enterprise Linux CRB (v. 9) | Fixed | RHSA-2024:4583 |
| Red Hat Enterprise Linux NFV (v. 9) | Fixed | RHSA-2024:4583 |
| Red Hat Enterprise Linux RT (v. 9) | Fixed | RHSA-2024:4583 |
| Red Hat Enterprise Linux Real Time EUS (v.9.2) | Fixed | RHSA-2024:4106 |
| Red Hat Enterprise Linux Real Time for NFV EUS (v.9.2) | Fixed | RHSA-2024:4106 |
Not affected: 4 products
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux AppStream EUS (v.9.2)
Timeline
- 2026-10-02 Threatist record created from CVE-2024-36957
- 2026-11-06 Affected versions changed · Red Hat
References
Patch 6
- https://git.kernel.org/stable/c/bcdac70adceb44373da204c3c297f2a98e13216e
- https://git.kernel.org/stable/c/ec697fbd38cbe2eef0948b58673b146caa95402f
- https://git.kernel.org/stable/c/8f11fe3ea3fc261640cfc8a5addd838000407c67
- https://git.kernel.org/stable/c/0a0285cee11c7dcc2657bcd456e469958a5009e7
- https://git.kernel.org/stable/c/fc3e0076c1f82fe981d321e3a7bad4cbee542c19
- https://git.kernel.org/stable/c/f299ee709fb45036454ca11e90cb2810fe771878
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- 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-2024-36957 · CVE Program
- CVE-2024-36957 · NVD
- FIRST EPSS
- CVE-2024-36957 · Red Hat security data · CC BY 4.0
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