KEYS: trusted: Do not use WARN when encode fails
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Partial Red Hat: 1 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat.
Summary
In the Linux kernel, the following vulnerability has been resolved: KEYS: trusted: Do not use WARN when encode fails When asn1_encode_sequence() fails, WARN is not the correct solution. 1. asn1_encode_sequence() is not an internal function (located in lib/asn1_encode.c). 2. Location is known, which makes the stack trace useless. 3. Results a crash if panic_on_warn is set. It is also noteworthy that the use of WARN is undocumented, and it should be avoided unless there is a carefully considered rationale to use it. Replace WARN with pr_err, and print the return value instead, which is only useful piece of information.
Why it matters now
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 | 5.13 and later | 5.15.160, 6.1.92, 6.6.32, 6.8.11, 6.9.2, 6.10 | Patch available | CNA |
- Linux VendorLinux Affected 5.13 and later Fixed in 5.15.160, 6.1.92, 6.6.32, 6.8.11, 6.9.2, 6.10 Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 5.13 to before 5.15.160; 5.16 to before 6.1.92; 6.2 to before 6.6.32; 6.7 to before 6.8.11; 6.9 to before 6.9.2 | Vulnerable | Linux |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 5.13 to before 5.15.160; 5.16 to before 6.1.92; 6.2 to before 6.6.32; 6.7 to before 6.8.11; 6.9 to before 6.9.2 Vulnerable ·Linux
Remediation
- Fix · CNA Linux (Linux) Fixed in 5.15.160, 6.1.92, 6.6.32, 6.8.11, 6.9.2, 6.10
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 9 | Affected | No fix yet |
Not affected: 3 products
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
Timeline
- 2026-10-02 Threatist record created from CVE-2024-36975
- 2026-10-03 Alias added: GHSA-qghg-5qfp-w5r4
References
Patch 6
- https://git.kernel.org/stable/c/96f650995c70237b061b497c66755e32908f8972
- https://git.kernel.org/stable/c/681935009fec3fc22af97ee312d4a24ccf3cf087
- https://git.kernel.org/stable/c/1c652e1e10676f942149052d9329b8bf2703529a
- https://git.kernel.org/stable/c/d32c6e09f7c4bec3ebc4941323f0aa6366bc1487
- https://git.kernel.org/stable/c/ff91cc12faf798f573dab2abc976c1d5b1862fea
- https://git.kernel.org/stable/c/050bf3c793a07f96bd1e2fd62e1447f731ed733b
More Linux Kernel vulnerabilities
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- 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-2024-36975 · CVE Program
- CVE-2024-36975 · NVD
- FIRST EPSS
- GHSA-qghg-5qfp-w5r4 · GitHub Advisory Database · CC BY 4.0
- CVE-2024-36975 · 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