Denial of service in Linux kernel - CVE-2016-8658
Published: October 17, 2016 / Updated: October 17, 2016
Vulnerability identifier: #VU1008
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2016-8658
CWE-ID: CWE-121
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a local user to cause DoS conditions on the target system.
The weakness exists due to stack-based buffer overfow in the brcmf_cfg80211_start_ap function in drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c. By using a long SSID Information Element in a command to a Netlink socket, attackers can trigger a system crash.
Successful exploitation of the vulnerability may result in denial of service and further attacks on the vulnerable system.
The weakness exists due to stack-based buffer overfow in the brcmf_cfg80211_start_ap function in drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c. By using a long SSID Information Element in a command to a Netlink socket, attackers can trigger a system crash.
Successful exploitation of the vulnerability may result in denial of service and further attacks on the vulnerable system.
How to mitigate CVE-2016-8658
Update to version 4.7.5.