The clone_mnt function in fs/namespace.c in the Linux kernel before 3.8.6 does not…
Priority LOW 22CWE-264Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Medium
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- Complete · None · None
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-264.
Summary
The clone_mnt function in fs/namespace.c in the Linux kernel before 3.8.6 does not properly restrict changes to the MNT_READONLY flag, which allows local users to bypass an intended read-only property of a filesystem by leveraging a separate mount namespace.
Why it matters now
EPSS 0.00338 27th percentileScored 2026-11-07
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 · 6
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | up to 3.8.5 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:3.8.0:*:*:*:*:*:*:* | 3.8.0 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:3.8.1:*:*:*:*:*:*:* | 3.8.1 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:3.8.2:*:*:*:*:*:*:* | 3.8.2 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:3.8.3:*:*:*:*:*:*:* | 3.8.3 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:3.8.4:*:*:*:*:*:*:* | 3.8.4 | Vulnerable | Linux |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions up to 3.8.5 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:3.8.0:*:*:*:*:*:*:* Versions 3.8.0 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:3.8.1:*:*:*:*:*:*:* Versions 3.8.1 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:3.8.2:*:*:*:*:*:*:* Versions 3.8.2 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:3.8.3:*:*:*:*:*:*:* Versions 3.8.3 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:3.8.4:*:*:*:*:*:*:* Versions 3.8.4 Vulnerable ·Linux
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2013-1957
- 2026-10-03 Alias added: GHSA-rjmg-j6w6-pv33
References
Other 4
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=132c94e31b8bca8ea921f9f96a57d684fa4ae0a9
- [oss-security] 20130416 Re: Re: Summary of security bugs (now fixed) in user namespaces
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.8.6
- https://github.com/torvalds/linux/commit/132c94e31b8bca8ea921f9f96a57d684fa4ae0a9
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-2013-1957 · CVE Program
- CVE-2013-1957 · NVD
- FIRST EPSS
- GHSA-rjmg-j6w6-pv33 · GitHub Advisory Database · CC BY 4.0
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