fs/proc/root.c in the procfs implementation in the Linux kernel before 3.2 does not…
Priority LOW 30CWE-119Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · Partial
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.
Summary
fs/proc/root.c in the procfs implementation in the Linux kernel before 3.2 does not properly interact with CLONE_NEWPID clone system calls, which allows remote attackers to cause a denial of service (reference leak and memory consumption) by making many connections to a daemon that uses PID namespaces to isolate clients, as demonstrated by vsftpd.
Why it matters now
EPSS 0.0426 91st percentileScored 2026-11-07
Public exploit Yes 4 exploit referencesTagged by NVD
Fix No fix listed No fixed version in the sources yet
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 · 10
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | up to 3.1.10 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:3.1.1:*:*:*:*:*:*:* | 3.1.1 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:3.1.2:*:*:*:*:*:*:* | 3.1.2 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:3.1.3:*:*:*:*:*:*:* | 3.1.3 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:3.1.4:*:*:*:*:*:*:* | 3.1.4 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:3.1.5:*:*:*:*:*:*:* | 3.1.5 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:3.1.6:*:*:*:*:*:*:* | 3.1.6 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:3.1.7:*:*:*:*:*:*:* | 3.1.7 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:3.1.8:*:*:*:*:*:*:* | 3.1.8 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:3.1.9:*:*:*:*:*:*:* | 3.1.9 | Vulnerable | Linux |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions up to 3.1.10 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:3.1.1:*:*:*:*:*:*:* Versions 3.1.1 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:3.1.2:*:*:*:*:*:*:* Versions 3.1.2 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:3.1.3:*:*:*:*:*:*:* Versions 3.1.3 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:3.1.4:*:*:*:*:*:*:* Versions 3.1.4 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:3.1.5:*:*:*:*:*:*:* Versions 3.1.5 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:3.1.6:*:*:*:*:*:*:* Versions 3.1.6 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:3.1.7:*:*:*:*:*:*:* Versions 3.1.7 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:3.1.8:*:*:*:*:*:*:* Versions 3.1.8 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:3.1.9:*:*:*:*:*:*:* Versions 3.1.9 Vulnerable ·Linux
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
Not affected: 4 products
- Red Hat Enterprise Linux 4
- Red Hat Enterprise Linux 5
- Red Hat Enterprise Linux 6
- Red Hat Enterprise MRG 2
Timeline
- 2026-10-02 Threatist record created from CVE-2012-2127
- 2026-10-03 Alias added: GHSA-8mj4-c2mw-qqf9
References
Exploit 4
Advisory 2
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-2012-2127 · CVE Program
- CVE-2012-2127 · NVD
- FIRST EPSS
- GHSA-8mj4-c2mw-qqf9 · GitHub Advisory Database · CC BY 4.0
- CVE-2012-2127 · Red Hat security data · CC BY 4.0
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