CVE-2016-7927

The IEEE 802.11 parser in tcpdump before 4.9.0 has a buffer overflow in print-802_11.c:ieee802_11_radio_print()

published January 28, 2017

CVSS
—
EPSS
3%
Percentile
87.9
In the wild
Unconfirmed
What it is

⚠️ A sneaky buffer overflow hides in tcpdump's IEEE 802.11 parser, waiting to cause chaos! Think of this as a traffic jam caused by an overloaded bridge — one too many packets can bring everything to a standstill. If an attacker exploited this bug, they could cause tcpdump to crash, potentially losing critical data. If exploited, this vulnerability could lead to unexpected crashes, compromising data capture processes during crucial analysis. This could be absolutely devastating for network monitoring, leaving you in the dark when you need insights the most!

Put simply

Think of this as a traffic jam caused by an overloaded bridge — one too many packets can bring everything to a standstill. If an attacker exploited this bug, they could cause tcpdump to crash, potentially losing critical data. In tcpdump versions before 4.9.0, the IEEE 802.11 parser can be triggered to overflow a buffer due to malformed input in the function print-802_11.c:ieee802_11_radio_print(). This allows for a potential denial of service condition.

What to do

If exploited, this vulnerability could lead to unexpected crashes, compromising data capture processes during crucial analysis. This could be absolutely devastating for network monitoring, leaving you in the dark when you need insights the most! Upgrade to tcpdump version 4.9.0 or later immediately to patch this vulnerability. Regularly review and test input to ensure that malformed data does not cause crashes. You might also want to monitor your network for any potential anomalies that could indicate exploitation attempts. You've got this! With a quick upgrade, you can ensure your network remains secure and resilient. 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.03172 · 87.9th percentile
Published
2017-01-28T01:33Z
EPSS history
Timeline
  • 28 JAN 01:33Z
    The IEEE 802.11 parser in tcpdump before 4.9.0 has a buffer overflow in print-802_11.c:ieee802_11_radio_print()
    cvelistv5