Format string vulnerability in the b43_request_firmware function in…
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-134 and the CVSS impact.
Summary
Format string vulnerability in the b43_request_firmware function in drivers/net/wireless/b43/main.c in the Broadcom B43 wireless driver in the Linux kernel through 3.9.4 allows local users to gain privileges by leveraging root access and including format string specifiers in an fwpostfix modprobe parameter, leading to improper construction of an error message.
Why it matters now
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:*:*:*:*:*:*:*:* | 2.6.12 to before 3.0.83; 3.1 to before 3.2.47; 3.3 to before 3.4.50; 3.5 to before 3.9.7 | Vulnerable | Linux |
| cpe:2.3:o:debian:debian_linux:6.0:*:*:*:*:*:*:* | 6.0 | Vulnerable | Debian |
| cpe:2.3:o:canonical:ubuntu_linux:10.04:*:*:*:-:*:*:* | 10.04 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:-:*:*:* | 12.04 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:12.10:*:*:*:*:*:*:* | 12.10 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:13.04:*:*:*:*:*:*:* | 13.04 | Vulnerable | Canonical |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 2.6.12 to before 3.0.83; 3.1 to before 3.2.47; 3.3 to before 3.4.50; 3.5 to before 3.9.7 Vulnerable ·Linux
- cpe:2.3:o:debian:debian_linux:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Debian
- cpe:2.3:o:canonical:ubuntu_linux:10.04:*:*:*:-:*:*:* Versions 10.04 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:-:*:*:* Versions 12.04 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:12.10:*:*:*:*:*:*:* Versions 12.10 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:13.04:*:*:*:*:*:*:* Versions 13.04 Vulnerable ·Canonical
Remediation
Red Hat 4 advisories
- RHSA-2013:1450 Released 2013-10-22 · Red Hat rating Importantkernel security and bug fix update
- Red Hat Enterprise Linux Compute Node EUS (v. 6.3) kernel-2.6.32-279.37.2.el6, kernel-debug-2.6.32-279.37.2.el6, kernel-debug-devel-2.6.32-279.37.2.el6 +5
- Red Hat Enterprise Linux Compute Node Optional EUS (v. 6.3) kernel-2.6.32-279.37.2.el6, python-perf-2.6.32-279.37.2.el6
- Red Hat Enterprise Linux Server EUS (v. 6.3) kernel-2.6.32-279.37.2.el6, kernel-bootwrapper-2.6.32-279.37.2.el6, kernel-debug-2.6.32-279.37.2.el6 +8
- Red Hat Enterprise Linux Server Optional EUS (v. 6.3) kernel-2.6.32-279.37.2.el6, python-perf-2.6.32-279.37.2.el6
- RHSA-2013:1264 Released 2013-09-16 · Red Hat rating Importantkernel-rt security and bug fix update
- Red Hat MRG Realtime for RHEL 6 Server v.2 kernel-rt-3.6.11.5-rt37.55.el6rt, kernel-rt-debug-3.6.11.5-rt37.55.el6rt, kernel-rt-debug-devel-3.6.11.5-rt37.55.el6rt +8
- RHSA-2013:1051 Released 2013-07-16 · Red Hat rating Moderatekernel security and bug fix update
- Red Hat Enterprise Linux Desktop (v. 6) kernel-2.6.32-358.14.1.el6, kernel-debug-2.6.32-358.14.1.el6, kernel-debug-devel-2.6.32-358.14.1.el6 +5
- Red Hat Enterprise Linux Desktop Optional (v. 6) kernel-2.6.32-358.14.1.el6, python-perf-2.6.32-358.14.1.el6
- Red Hat Enterprise Linux HPC Node (v. 6) kernel-2.6.32-358.14.1.el6, kernel-debug-2.6.32-358.14.1.el6, kernel-debug-devel-2.6.32-358.14.1.el6 +5
- Red Hat Enterprise Linux HPC Node Optional (v. 6) kernel-2.6.32-358.14.1.el6, python-perf-2.6.32-358.14.1.el6
- Red Hat Enterprise Linux Server (v. 6) kernel-2.6.32-358.14.1.el6, kernel-bootwrapper-2.6.32-358.14.1.el6, kernel-debug-2.6.32-358.14.1.el6 +8
- Red Hat Enterprise Linux Server Optional (v. 6) kernel-2.6.32-358.14.1.el6, python-perf-2.6.32-358.14.1.el6
- Red Hat Enterprise Linux Workstation (v. 6) kernel-2.6.32-358.14.1.el6, kernel-debug-2.6.32-358.14.1.el6, kernel-debug-devel-2.6.32-358.14.1.el6 +5
- Red Hat Enterprise Linux Workstation Optional (v. 6) kernel-2.6.32-358.14.1.el6, python-perf-2.6.32-358.14.1.el6
Show 1 more Red Hat advisories
- RHSA-2013:1080 Released 2013-07-16 · Red Hat rating Moderatekernel security and bug fix update
- Red Hat Enterprise Linux OpenStack Platform 3.0 kernel-2.6.32-358.114.1.openstack.el6, kernel-debug-2.6.32-358.114.1.openstack.el6, kernel-debug-devel-2.6.32-358.114.1.openstack.el6 +6
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux Compute Node EUS (v. 6.3) | Fixed | RHSA-2013:1450 |
| Red Hat Enterprise Linux Compute Node Optional EUS (v. 6.3) | Fixed | RHSA-2013:1450 |
| Red Hat Enterprise Linux Desktop (v. 6) | Fixed | RHSA-2013:1051 |
| Red Hat Enterprise Linux Desktop Optional (v. 6) | Fixed | RHSA-2013:1051 |
| Red Hat Enterprise Linux HPC Node (v. 6) | Fixed | RHSA-2013:1051 |
| Red Hat Enterprise Linux HPC Node Optional (v. 6) | Fixed | RHSA-2013:1051 |
| Red Hat Enterprise Linux OpenStack Platform 3.0 | Fixed | RHSA-2013:1080 |
| Red Hat Enterprise Linux Server (v. 6) | Fixed | RHSA-2013:1051 |
| Red Hat Enterprise Linux Server EUS (v. 6.3) | Fixed | RHSA-2013:1450 |
| Red Hat Enterprise Linux Server Optional (v. 6) | Fixed | RHSA-2013:1051 |
| Red Hat Enterprise Linux Server Optional EUS (v. 6.3) | Fixed | RHSA-2013:1450 |
| Red Hat Enterprise Linux Workstation (v. 6) | Fixed | RHSA-2013:1051 |
| Red Hat Enterprise Linux Workstation Optional (v. 6) | Fixed | RHSA-2013:1051 |
| Red Hat MRG Realtime for RHEL 6 Server v.2 | Fixed | RHSA-2013:1264 |
Not affected: 2 products
- Red Hat Enterprise Linux 5
- Red Hat Enterprise Linux 7
Timeline
- 2026-10-02 Threatist record created from CVE-2013-2852
- 2026-10-03 Alias added: GHSA-jrj6-vfj7-prcf
References
Advisory 15
Sources
- CVE-2013-2852 · CVE Program
- CVE-2013-2852 · NVD
- FIRST EPSS
- GHSA-jrj6-vfj7-prcf · GitHub Advisory Database · CC BY 4.0
- CVE-2013-2852 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences