Heap-based buffer overflow in the process_tx_desc function in the e1000 emulation…
Priority LOW 34CWE-119Published · Updated
Key facts
- Attack vector
- Adjacent network
- Privileges required
- Low
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Medium
- Impact type
- Code execution
- Confidentiality · integrity · availability
- Complete · Complete · Complete
- Fix status
- Partial Red Hat: 9 fixed, 1 without a fix
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-119 and the CVSS impact.
Summary
Heap-based buffer overflow in the process_tx_desc function in the e1000 emulation (hw/e1000.c) in qemu-kvm 0.12, and possibly other versions, allows guest OS users to cause a denial of service (QEMU crash) and possibly execute arbitrary code via crafted legacy mode packets.
Why it matters now
EPSS 0.00904 60th percentileScored 2026-11-07
Fix Partial Red Hat: 4 advisoriesRed Hat: 9 fixed, 1 without a fix
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
Remediation
Red Hat 4 advisories
- RHSA-2012:0370 Released 2012-03-07 · Red Hat rating Importantxen security and bug fix update
- RHEL Desktop Multi OS (v. 5 client) xen-3.0.3-135.el5_8.2, xen-3.0.3-135.el5_8.2.i386, xen-devel-3.0.3-135.el5_8.2 +1
- RHEL Virtualization (v. 5 server) xen-3.0.3-135.el5_8.2, xen-3.0.3-135.el5_8.2.i386, xen-3.0.3-135.el5_8.2.ia64 +3
- Red Hat Enterprise Linux (v. 5 server) xen-3.0.3-135.el5_8.2, xen-libs-3.0.3-135.el5_8.2, xen-libs-3.0.3-135.el5_8.2.i386 +1
- Red Hat Enterprise Linux Desktop (v. 5 client) xen-3.0.3-135.el5_8.2, xen-libs-3.0.3-135.el5_8.2, xen-libs-3.0.3-135.el5_8.2.i386
- RHSA-2012:0109 Released 2012-02-15 · Red Hat rating Importantrhev-hypervisor6 security and bug fix update
- RHEV Hypervisor for RHEL-6 rhev-hypervisor6-6.2-20120209.0.el6_2, rhev-hypervisor6-tools-6.2-20120209.0.el6_2
- RHSA-2012:0051 Released 2012-01-23 · Red Hat rating Importantkvm security update
- RHEL Desktop Multi OS (v. 5 client) kmod-kvm-83-239.el5_7.1, kmod-kvm-debug-83-239.el5_7.1, kvm-83-239.el5_7.1 +2
- RHEL Virtualization (v. 5 server) kmod-kvm-83-239.el5_7.1, kmod-kvm-debug-83-239.el5_7.1, kvm-83-239.el5_7.1 +2
Show 1 more Red Hat advisories
- RHSA-2012:0050 Released 2012-01-23 · Red Hat rating Importantqemu-kvm security, bug fix, and enhancement update
- Red Hat Enterprise Linux Desktop (v. 6) qemu-img-2:0.12.1.2-2.209.el6_2.4, qemu-kvm-2:0.12.1.2-2.209.el6_2.4, qemu-kvm-tools-2:0.12.1.2-2.209.el6_2.4
- Red Hat Enterprise Linux HPC Node (v. 6) qemu-img-2:0.12.1.2-2.209.el6_2.4, qemu-kvm-2:0.12.1.2-2.209.el6_2.4, qemu-kvm-tools-2:0.12.1.2-2.209.el6_2.4
- Red Hat Enterprise Linux Server (v. 6) qemu-img-2:0.12.1.2-2.209.el6_2.4, qemu-kvm-2:0.12.1.2-2.209.el6_2.4, qemu-kvm-tools-2:0.12.1.2-2.209.el6_2.4
- Red Hat Enterprise Linux Workstation (v. 6) qemu-img-2:0.12.1.2-2.209.el6_2.4, qemu-kvm-2:0.12.1.2-2.209.el6_2.4, qemu-kvm-tools-2:0.12.1.2-2.209.el6_2.4
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 5 | Affected | No fix yet |
| RHEL Desktop Multi OS (v. 5 client) | Fixed | RHSA-2012:0051, RHSA-2012:0370 |
| RHEL Virtualization (v. 5 server) | Fixed | RHSA-2012:0051, RHSA-2012:0370 |
| RHEV Hypervisor for RHEL-6 | Fixed | RHSA-2012:0109 |
| Red Hat Enterprise Linux (v. 5 server) | Fixed | RHSA-2012:0370 |
| Red Hat Enterprise Linux Desktop (v. 5 client) | Fixed | RHSA-2012:0370 |
| Red Hat Enterprise Linux Desktop (v. 6) | Fixed | RHSA-2012:0050 |
| Red Hat Enterprise Linux HPC Node (v. 6) | Fixed | RHSA-2012:0050 |
| Red Hat Enterprise Linux Server (v. 6) | Fixed | RHSA-2012:0050 |
| Red Hat Enterprise Linux Workstation (v. 6) | Fixed | RHSA-2012:0050 |
Timeline
- 2026-10-02 Threatist record created from CVE-2012-0029
- 2026-10-03 Alias added: GHSA-8rxf-mc82-x3wv
References
More Kvm Group Qemu-kvm vulnerabilities
- TI-2011-02204 The virtio_queue_notify in qemu-kvm 0.14.0 and earlier does not properly validate the… CVSS 2.0MEDIUM 5.8
Sources
- CVE-2012-0029 · CVE Program
- CVE-2012-0029 · NVD
- FIRST EPSS
- GHSA-8rxf-mc82-x3wv · GitHub Advisory Database · CC BY 4.0
- CVE-2012-0029 · Red Hat security data · CC BY 4.0
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