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TI-2012-03048 Aliases CVE-2012-3520GHSA-fxmm-x2w5-24cg

The Netlink implementation in the Linux kernel before 3.2.30 does not properly handle…

Priority LOW 11CWE-287Published · 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
None · Partial · None
Fix status
Fixed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-287.

Summary

The Netlink implementation in the Linux kernel before 3.2.30 does not properly handle messages that lack SCM_CREDENTIALS data, which might allow local users to spoof Netlink communication via a crafted message, as demonstrated by a message to (1) Avahi or (2) NetworkManager.

Why it matters now

EPSS 0.00429 37th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
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 · 53

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*up to 3.2.29VulnerableLinux
cpe:2.3:o:linux:linux_kernel:2.3.2:*:*:*:*:*:*:*2.3.2VulnerableLinux
cpe:2.3:o:linux:linux_kernel:2.3.20:*:*:*:*:*:*:*2.3.20VulnerableLinux
cpe:2.3:o:linux:linux_kernel:2.3.21:*:*:*:*:*:*:*2.3.21VulnerableLinux
cpe:2.3:o:linux:linux_kernel:2.3.22:*:*:*:*:*:*:*2.3.22VulnerableLinux
cpe:2.3:o:linux:linux_kernel:2.3.23:*:*:*:*:*:*:*2.3.23VulnerableLinux
cpe:2.3:o:linux:linux_kernel:2.3.24:*:*:*:*:*:*:*2.3.24VulnerableLinux
cpe:2.3:o:linux:linux_kernel:2.3.25:*:*:*:*:*:*:*2.3.25VulnerableLinux
cpe:2.3:o:linux:linux_kernel:2.3.26:*:*:*:*:*:*:*2.3.26VulnerableLinux
cpe:2.3:o:linux:linux_kernel:2.3.27:*:*:*:*:*:*:*2.3.27VulnerableLinux
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions up to 3.2.29 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:2.3.2:*:*:*:*:*:*:* Versions 2.3.2 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:2.3.20:*:*:*:*:*:*:* Versions 2.3.20 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:2.3.21:*:*:*:*:*:*:* Versions 2.3.21 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:2.3.22:*:*:*:*:*:*:* Versions 2.3.22 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:2.3.23:*:*:*:*:*:*:* Versions 2.3.23 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:2.3.24:*:*:*:*:*:*:* Versions 2.3.24 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:2.3.25:*:*:*:*:*:*:* Versions 2.3.25 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:2.3.26:*:*:*:*:*:*:* Versions 2.3.26 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:2.3.27:*:*:*:*:*:*:* Versions 2.3.27 Vulnerable ·Linux
Show 43 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:2.3.28:*:*:*:*:*:*:*2.3.28VulnerableLinux
cpe:2.3:o:linux:linux_kernel:2.3.29:*:*:*:*:*:*:*2.3.29VulnerableLinux
cpe:2.3:o:linux:linux_kernel:2.4.33.2:*:*:*:*:*:*:*2.4.33.2VulnerableLinux
cpe:2.3:o:linux:linux_kernel:2.6.13.2:*:*:*:*:*:*:*2.6.13.2VulnerableLinux
cpe:2.3:o:linux:linux_kernel:2.6.23.2:*:*:*:*:*:*:*2.6.23.2VulnerableLinux
cpe:2.3:o:linux:linux_kernel:2.6.33.2:*:*:*:*:*:*:*2.6.33.2VulnerableLinux
cpe:2.3:o:linux:linux_kernel:2.6.33.20:*:*:*:*:*:*:*2.6.33.20VulnerableLinux
cpe:2.3:o:linux:linux_kernel:3.2:*:*:*:*:*:*:*3.2VulnerableLinux
cpe:2.3:o:linux:linux_kernel:3.2:rc2:*:*:*:*:*:*3.2 rc2VulnerableLinux
cpe:2.3:o:linux:linux_kernel:3.2:rc3:*:*:*:*:*:*3.2 rc3VulnerableLinux
cpe:2.3:o:linux:linux_kernel:3.2:rc4:*:*:*:*:*:*3.2 rc4VulnerableLinux
cpe:2.3:o:linux:linux_kernel:3.2:rc5:*:*:*:*:*:*3.2 rc5VulnerableLinux
cpe:2.3:o:linux:linux_kernel:3.2:rc6:*:*:*:*:*:*3.2 rc6VulnerableLinux
cpe:2.3:o:linux:linux_kernel:3.2:rc7:*:*:*:*:*:*3.2 rc7VulnerableLinux
cpe:2.3:o:linux:linux_kernel:3.2.1:*:*:*:*:*:*:*3.2.1VulnerableLinux
cpe:2.3:o:linux:linux_kernel:3.2.2:*:*:*:*:*:*:*3.2.2VulnerableLinux
cpe:2.3:o:linux:linux_kernel:3.2.3:*:*:*:*:*:*:*3.2.3VulnerableLinux
cpe:2.3:o:linux:linux_kernel:3.2.4:*:*:*:*:*:*:*3.2.4VulnerableLinux
cpe:2.3:o:linux:linux_kernel:3.2.5:*:*:*:*:*:*:*3.2.5VulnerableLinux
cpe:2.3:o:linux:linux_kernel:3.2.6:*:*:*:*:*:*:*3.2.6VulnerableLinux
cpe:2.3:o:linux:linux_kernel:3.2.7:*:*:*:*:*:*:*3.2.7VulnerableLinux
cpe:2.3:o:linux:linux_kernel:3.2.8:*:*:*:*:*:*:*3.2.8VulnerableLinux
cpe:2.3:o:linux:linux_kernel:3.2.9:*:*:*:*:*:*:*3.2.9VulnerableLinux
cpe:2.3:o:linux:linux_kernel:3.2.10:*:*:*:*:*:*:*3.2.10VulnerableLinux
cpe:2.3:o:linux:linux_kernel:3.2.11:*:*:*:*:*:*:*3.2.11VulnerableLinux
cpe:2.3:o:linux:linux_kernel:3.2.12:*:*:*:*:*:*:*3.2.12VulnerableLinux
cpe:2.3:o:linux:linux_kernel:3.2.13:*:*:*:*:*:*:*3.2.13VulnerableLinux
cpe:2.3:o:linux:linux_kernel:3.2.14:*:*:*:*:*:*:*3.2.14VulnerableLinux
cpe:2.3:o:linux:linux_kernel:3.2.15:*:*:*:*:*:*:*3.2.15VulnerableLinux
cpe:2.3:o:linux:linux_kernel:3.2.16:*:*:*:*:*:*:*3.2.16VulnerableLinux
cpe:2.3:o:linux:linux_kernel:3.2.17:*:*:*:*:*:*:*3.2.17VulnerableLinux
cpe:2.3:o:linux:linux_kernel:3.2.18:*:*:*:*:*:*:*3.2.18VulnerableLinux
cpe:2.3:o:linux:linux_kernel:3.2.19:*:*:*:*:*:*:*3.2.19VulnerableLinux
cpe:2.3:o:linux:linux_kernel:3.2.20:*:*:*:*:*:*:*3.2.20VulnerableLinux
cpe:2.3:o:linux:linux_kernel:3.2.21:*:*:*:*:*:*:*3.2.21VulnerableLinux
cpe:2.3:o:linux:linux_kernel:3.2.22:*:*:*:*:*:*:*3.2.22VulnerableLinux
cpe:2.3:o:linux:linux_kernel:3.2.23:*:*:*:*:*:*:*3.2.23VulnerableLinux
cpe:2.3:o:linux:linux_kernel:3.2.24:*:*:*:*:*:*:*3.2.24VulnerableLinux
cpe:2.3:o:linux:linux_kernel:3.2.25:*:*:*:*:*:*:*3.2.25VulnerableLinux
cpe:2.3:o:linux:linux_kernel:3.2.26:*:*:*:*:*:*:*3.2.26VulnerableLinux
cpe:2.3:o:linux:linux_kernel:3.2.27:*:*:*:*:*:*:*3.2.27VulnerableLinux
cpe:2.3:o:linux:linux_kernel:3.2.28:*:*:*:*:*:*:*3.2.28VulnerableLinux
cpe:2.3:o:linux:linux_kernel:3.3.2:*:*:*:*:*:*:*3.3.2VulnerableLinux
  • cpe:2.3:o:linux:linux_kernel:2.3.28:*:*:*:*:*:*:* Versions 2.3.28 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:2.3.29:*:*:*:*:*:*:* Versions 2.3.29 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:2.4.33.2:*:*:*:*:*:*:* Versions 2.4.33.2 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:2.6.13.2:*:*:*:*:*:*:* Versions 2.6.13.2 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:2.6.23.2:*:*:*:*:*:*:* Versions 2.6.23.2 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:2.6.33.2:*:*:*:*:*:*:* Versions 2.6.33.2 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:2.6.33.20:*:*:*:*:*:*:* Versions 2.6.33.20 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:3.2:*:*:*:*:*:*:* Versions 3.2 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:3.2:rc2:*:*:*:*:*:* Versions 3.2 rc2 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:3.2:rc3:*:*:*:*:*:* Versions 3.2 rc3 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:3.2:rc4:*:*:*:*:*:* Versions 3.2 rc4 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:3.2:rc5:*:*:*:*:*:* Versions 3.2 rc5 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:3.2:rc6:*:*:*:*:*:* Versions 3.2 rc6 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:3.2:rc7:*:*:*:*:*:* Versions 3.2 rc7 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:3.2.1:*:*:*:*:*:*:* Versions 3.2.1 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:3.2.2:*:*:*:*:*:*:* Versions 3.2.2 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:3.2.3:*:*:*:*:*:*:* Versions 3.2.3 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:3.2.4:*:*:*:*:*:*:* Versions 3.2.4 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:3.2.5:*:*:*:*:*:*:* Versions 3.2.5 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:3.2.6:*:*:*:*:*:*:* Versions 3.2.6 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:3.2.7:*:*:*:*:*:*:* Versions 3.2.7 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:3.2.8:*:*:*:*:*:*:* Versions 3.2.8 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:3.2.9:*:*:*:*:*:*:* Versions 3.2.9 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:3.2.10:*:*:*:*:*:*:* Versions 3.2.10 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:3.2.11:*:*:*:*:*:*:* Versions 3.2.11 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:3.2.12:*:*:*:*:*:*:* Versions 3.2.12 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:3.2.13:*:*:*:*:*:*:* Versions 3.2.13 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:3.2.14:*:*:*:*:*:*:* Versions 3.2.14 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:3.2.15:*:*:*:*:*:*:* Versions 3.2.15 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:3.2.16:*:*:*:*:*:*:* Versions 3.2.16 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:3.2.17:*:*:*:*:*:*:* Versions 3.2.17 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:3.2.18:*:*:*:*:*:*:* Versions 3.2.18 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:3.2.19:*:*:*:*:*:*:* Versions 3.2.19 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:3.2.20:*:*:*:*:*:*:* Versions 3.2.20 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:3.2.21:*:*:*:*:*:*:* Versions 3.2.21 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:3.2.22:*:*:*:*:*:*:* Versions 3.2.22 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:3.2.23:*:*:*:*:*:*:* Versions 3.2.23 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:3.2.24:*:*:*:*:*:*:* Versions 3.2.24 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:3.2.25:*:*:*:*:*:*:* Versions 3.2.25 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:3.2.26:*:*:*:*:*:*:* Versions 3.2.26 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:3.2.27:*:*:*:*:*:*:* Versions 3.2.27 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:3.2.28:*:*:*:*:*:*:* Versions 3.2.28 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:3.3.2:*:*:*:*:*:*:* Versions 3.3.2 Vulnerable ·Linux

Remediation

Red Hat 1 advisory

  • RHSA-2012:1491 Released 2012-12-04 · Red Hat rating Important
    kernel-rt security and bug fix update
    • Red Hat MRG Realtime for RHEL 6 Server v.2 kernel-rt-3.2.33-rt50.66.el6rt, kernel-rt-debug-3.2.33-rt50.66.el6rt, kernel-rt-debug-devel-3.2.33-rt50.66.el6rt +8

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat MRG Realtime for RHEL 6 Server v.2Fixed RHSA-2012:1491
Not affected: 2 products
  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise Linux 6

Timeline

  1. 2026-10-02 Threatist record created from CVE-2012-3520
  2. 2026-10-03 Alias added: GHSA-fxmm-x2w5-24cg

References

Exploit 1

Advisory 4

Other 5

  • 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
See all 15278 →

Sources

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