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TI-2013-03804 Aliases CVE-2013-4343GHSA-p6h8-8fv7-v27h

Use-after-free vulnerability in drivers/net/tun.c in the Linux kernel through 3.11.1…

Priority LOW 30CWE-399Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
— Not recorded in CVSS 2.0
Attack complexity
Medium
Impact type
Code execution
Confidentiality · integrity · availability
Complete · Complete · Complete
Fix status
Fixed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-399 and the CVSS impact.

Summary

Use-after-free vulnerability in drivers/net/tun.c in the Linux kernel through 3.11.1 allows local users to gain privileges by leveraging the CAP_NET_ADMIN capability and providing an invalid tuntap interface name in a TUNSETIFF ioctl call.

Why it matters now

EPSS 0.00355 29th percentileScored 2026-11-07
Fix Fixed Red Hat: 1 advisory

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 3

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*3.8 to before 3.10.16; 3.11 to before 3.11.5VulnerableLinux
cpe:2.3:o:canonical:ubuntu_linux:13.04:*:*:*:*:*:*:*13.04VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:13.10:*:*:*:*:*:*:*13.10VulnerableCanonical
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 3.8 to before 3.10.16; 3.11 to before 3.11.5 Vulnerable ·Linux
  • cpe:2.3:o:canonical:ubuntu_linux:13.04:*:*:*:*:*:*:* Versions 13.04 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:13.10:*:*:*:*:*:*:* Versions 13.10 Vulnerable ·Canonical

Remediation

Red Hat 1 advisory

  • RHSA-2013:1490 Released 2013-10-31 · Red Hat rating Important
    kernel-rt security and bug fix update
    • Red Hat MRG Realtime for RHEL 6 Server v.2 kernel-rt-3.8.13-rt14.25.el6rt, kernel-rt-debug-3.8.13-rt14.25.el6rt, kernel-rt-debug-devel-3.8.13-rt14.25.el6rt +8

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat MRG Realtime for RHEL 6 Server v.2Fixed RHSA-2013:1490
Not affected: 3 products
  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7

Timeline

  1. 2026-10-02 Threatist record created from CVE-2013-4343
  2. 2026-10-03 Alias added: GHSA-p6h8-8fv7-v27h

References

Advisory 11

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences