CVE-2011-1935

pcap-linux.c in libpcap 1.1.1 before commit ea9432fabdf4b33cbc76d9437200e028f1c47c93 when snaplen is set may truncate packets, which might allow remote…

published October 20, 2017

CVSS
—
EPSS
4%
Percentile
89.5
In the wild
Unconfirmed
What it is

⚠️ A little misconfiguration can lead to big troubles! In libpcap 1.1.1, if the snaplen isn't set just right, attackers might slip through undetected by sending crafted packets. 🔍 Think of it like a security guard at a concert who only checks the first few attendees thoroughly but lets the rest in without a second glance. If the check isn't comprehensive, some rowdy fans might sneak in with a few surprises! The ramifications could be concerning—attackers could send arbitrary data, potentially manipulating network traffic or hiding malicious content from detection. This could lead to unauthorized access or data leaks without anyone noticing, which is absolutely devastating!

Put simply

Think of it like a security guard at a concert who only checks the first few attendees thoroughly but lets the rest in without a second glance. If the check isn't comprehensive, some rowdy fans might sneak in with a few surprises! This vulnerability in libpcap arises when the snaplen parameter is improperly configured, allowing for packet truncation that lets attackers bypass detection by sending manipulated packets.

What to do

The ramifications could be concerning—attackers could send arbitrary data, potentially manipulating network traffic or hiding malicious content from detection. This could lead to unauthorized access or data leaks without anyone noticing, which is absolutely devastating! Review your libpcap version and ensure you're running at least the patched version after commit ea9432fabdf4b33cbc76d9437200e028f1c47c93. It's essential to validate the snaplen setting to avoid unintentional packet truncation. Keep an eye on updates from the libpcap team to stay protected! You've got this! By following these steps, you're on your way to securing your network traffic in no time! 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.03649 · 89.5th percentile
Published
2017-10-20T18:00Z
EPSS history
Timeline
  • 20 OCT 18:00Z
    pcap-linux.c in libpcap 1.1.1 before commit ea9432fabdf4b33cbc76d9437200e028f1c47c93 when snaplen is set may truncate packets, which might allow remote…
    cvelistv5