CVE-2013-4579

Severity: medium (CVSS 4.3 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 10.2% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2013-11-20 · updated 2026-06-16
Weakness: CWE-310

Description

The ath9k_htc_set_bssid_mask function in drivers/net/wireless/ath/ath9k/htc_drv_main.c in the Linux kernel through 3.12 uses a BSSID masking approach to determine the set of MAC addresses on which a Wi-Fi device is listening, which allows remote attackers to discover the original MAC address after spoofing by sending a series of packets to MAC addresses with certain bit manipulations.

Affected products

Linux kernel: through 3.12; 3.0-rc1, 3.0-rc2, 3.0-rc3, 3.0-rc4, 3.0-rc5, 3.0-rc6 (+266)

References

http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=729573
http://www.mathyvanhoef.com/2013/11/unmasking-spoofed-mac-address.html
http://www.openwall.com/lists/oss-security/2013/11/15/3
http://www.ubuntu.com/usn/USN-2113-1
http://www.ubuntu.com/usn/USN-2117-1
http://www.ubuntu.com/usn/USN-2133-1
http://www.ubuntu.com/usn/USN-2134-1
http://www.ubuntu.com/usn/USN-2135-1
http://www.ubuntu.com/usn/USN-2136-1
http://www.ubuntu.com/usn/USN-2138-1
http://www.ubuntu.com/usn/USN-2139-1
http://www.ubuntu.com/usn/USN-2141-1

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