The raw_release function in net/can/raw.c in the Linux kernel before 2.6.39-rc6 does not…
Priority LOW 23CWE-476Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · Complete
- Fix status
- Partial Red Hat: 2 fixed, 1 without a fix
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-476.
Summary
The raw_release function in net/can/raw.c in the Linux kernel before 2.6.39-rc6 does not properly validate a socket data structure, which allows local users to cause a denial of service (NULL pointer dereference) or possibly have unspecified other impact via a crafted release operation.
Why it matters now
EPSS 0.00405 34th percentileScored 2026-11-07
Fix Partial Red Hat: 2 advisoriesRed Hat: 2 fixed, 1 without a fix
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 7
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | before 2.6.39 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:2.6.39:-:*:*:*:*:*:* | 2.6.39 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:2.6.39:rc1:*:*:*:*:*:* | 2.6.39 rc1 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:2.6.39:rc2:*:*:*:*:*:* | 2.6.39 rc2 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:2.6.39:rc3:*:*:*:*:*:* | 2.6.39 rc3 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:2.6.39:rc4:*:*:*:*:*:* | 2.6.39 rc4 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:2.6.39:rc5:*:*:*:*:*:* | 2.6.39 rc5 | Vulnerable | Linux |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions before 2.6.39 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:2.6.39:-:*:*:*:*:*:* Versions 2.6.39 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:2.6.39:rc1:*:*:*:*:*:* Versions 2.6.39 rc1 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:2.6.39:rc2:*:*:*:*:*:* Versions 2.6.39 rc2 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:2.6.39:rc3:*:*:*:*:*:* Versions 2.6.39 rc3 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:2.6.39:rc4:*:*:*:*:*:* Versions 2.6.39 rc4 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:2.6.39:rc5:*:*:*:*:*:* Versions 2.6.39 rc5 Vulnerable ·Linux
Remediation
Red Hat 2 advisories
- RHSA-2011:1253 Released 2011-09-12 · Red Hat rating Importantkernel-rt security and bug fix update
- Red Hat MRG Realtime for RHEL 6 Server v.2 kernel-rt-2.6.33.9-rt31.75.el6rt, kernel-rt-debug-2.6.33.9-rt31.75.el6rt, kernel-rt-debug-devel-2.6.33.9-rt31.75.el6rt +7
- RHSA-2011:0836 Released 2011-06-01 · Red Hat rating Importantkernel security and bug fix update
- Red Hat Enterprise Linux Server (v. 6) kernel-2.6.32-131.2.1.el6, kernel-bootwrapper-2.6.32-131.2.1.el6, kernel-debug-2.6.32-131.2.1.el6 +8
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise MRG 1 | Affected | No fix yet |
| Red Hat Enterprise Linux Server (v. 6) | Fixed | RHSA-2011:0836 |
| Red Hat MRG Realtime for RHEL 6 Server v.2 | Fixed | RHSA-2011:1253 |
Timeline
- 2026-10-02 Threatist record created from CVE-2011-1748
- 2026-10-03 Alias added: GHSA-2c46-3v56-p8mq
References
Advisory 6
- [oss-security] 20110421 Re: CVE request: kernel: missing socket check in can/bcm release
- [oss-security] 20110421 Re: CVE request: kernel: missing socket check in can/bcm release
- [oss-security] 20110425 Re: CVE request: kernel: missing socket check in can/bcm release
- [oss-security] 20110421 Re: CVE request: kernel: missing socket check in can/bcm release
- [oss-security] 20110422 Re: CVE request: kernel: missing socket check in can/bcm release
- [oss-security] 20110421 Re: CVE request: kernel: missing socket check in can/bcm release
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-2011-1748 · CVE Program
- CVE-2011-1748 · NVD
- FIRST EPSS
- GHSA-2c46-3v56-p8mq · GitHub Advisory Database · CC BY 4.0
- CVE-2011-1748 · Red Hat security data · CC BY 4.0
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