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TI-2012-01892 Aliases CVE-2012-2119GHSA-7wpp-8mhw-h7xv

Buffer overflow in the macvtap device driver in the Linux kernel before 3.4.5, when…

Priority LOW 25CWE-119Published · Updated

Key facts

Attack vector
Adjacent network
Privileges required
Low
User interaction
— Not recorded in CVSS 2.0
Attack complexity
Medium
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · Complete
Fix status
Fixed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-119 and the CVSS impact.

Summary

Buffer overflow in the macvtap device driver in the Linux kernel before 3.4.5, when running in certain configurations, allows privileged KVM guest users to cause a denial of service (crash) via a long descriptor with a long vector length.

Why it matters now

EPSS 0.00713 53rd 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 · 5

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*up to 3.4.4VulnerableLinux
cpe:2.3:o:linux:linux_kernel:3.4:*:*:*:*:*:*:*3.4VulnerableLinux
cpe:2.3:o:linux:linux_kernel:3.4.1:*:*:*:*:*:*:*3.4.1VulnerableLinux
cpe:2.3:o:linux:linux_kernel:3.4.2:*:*:*:*:*:*:*3.4.2VulnerableLinux
cpe:2.3:o:linux:linux_kernel:3.4.3:*:*:*:*:*:*:*3.4.3VulnerableLinux
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions up to 3.4.4 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:3.4:*:*:*:*:*:*:* Versions 3.4 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:3.4.1:*:*:*:*:*:*:* Versions 3.4.1 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:3.4.2:*:*:*:*:*:*:* Versions 3.4.2 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:3.4.3:*:*:*:*:*:*:* Versions 3.4.3 Vulnerable ·Linux

Remediation

Red Hat 1 advisory

  • RHSA-2012:0743 Released 2012-06-18 · Red Hat rating Important
    kernel security and bug fix update
    • Red Hat Enterprise Linux Desktop (v. 6) kernel-2.6.32-220.23.1.el6, kernel-debug-2.6.32-220.23.1.el6, kernel-debug-devel-2.6.32-220.23.1.el6 +5
    • Red Hat Enterprise Linux Desktop Optional (v. 6) kernel-2.6.32-220.23.1.el6, python-perf-2.6.32-220.23.1.el6
    • Red Hat Enterprise Linux HPC Node (v. 6) kernel-2.6.32-220.23.1.el6, kernel-debug-2.6.32-220.23.1.el6, kernel-debug-devel-2.6.32-220.23.1.el6 +5
    • Red Hat Enterprise Linux HPC Node Optional (v. 6) kernel-2.6.32-220.23.1.el6, python-perf-2.6.32-220.23.1.el6
    • Red Hat Enterprise Linux Server (v. 6) kernel-2.6.32-220.23.1.el6, kernel-bootwrapper-2.6.32-220.23.1.el6, kernel-debug-2.6.32-220.23.1.el6 +8
    • Red Hat Enterprise Linux Server Optional (v. 6) kernel-2.6.32-220.23.1.el6, python-perf-2.6.32-220.23.1.el6
    • Red Hat Enterprise Linux Workstation (v. 6) kernel-2.6.32-220.23.1.el6, kernel-debug-2.6.32-220.23.1.el6, kernel-debug-devel-2.6.32-220.23.1.el6 +5
    • Red Hat Enterprise Linux Workstation Optional (v. 6) kernel-2.6.32-220.23.1.el6, python-perf-2.6.32-220.23.1.el6

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux Desktop (v. 6)Fixed RHSA-2012:0743
Red Hat Enterprise Linux Desktop Optional (v. 6)Fixed RHSA-2012:0743
Red Hat Enterprise Linux HPC Node (v. 6)Fixed RHSA-2012:0743
Red Hat Enterprise Linux HPC Node Optional (v. 6)Fixed RHSA-2012:0743
Red Hat Enterprise Linux Server (v. 6)Fixed RHSA-2012:0743
Red Hat Enterprise Linux Server Optional (v. 6)Fixed RHSA-2012:0743
Red Hat Enterprise Linux Workstation (v. 6)Fixed RHSA-2012:0743
Red Hat Enterprise Linux Workstation Optional (v. 6)Fixed RHSA-2012:0743
Not affected: 2 products
  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise MRG 2

Timeline

  1. 2026-10-02 Threatist record created from CVE-2012-2119
  2. 2026-10-03 Alias added: GHSA-7wpp-8mhw-h7xv

References

Advisory 3

Other 7

  • 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