CVE-2017-5485

The ISO CLNS parser in tcpdump before 4.9.0 has a buffer overflow in addrtoname.c:lookup_nsap()

published January 28, 2017

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

⚠️ A sneaky buffer overflow lurks in tcpdump's ISO CLNS parser, letting attackers play with memory like a kid at a candy store! 🍬 Think of this vulnerability as a traffic jam caused by too many cars trying to squeeze through a narrow checkpoint. If the checkpoint can’t handle the volume, it might burst and cause chaos on the road! If exploited, this buffer overflow could allow attackers to corrupt memory, potentially leading to crashes or unexpected behavior in tcpdump. While that might not sound like the end of the world, it could compromise network monitoring and lead to gaps in security oversight—yikes!

Put simply

Think of this vulnerability as a traffic jam caused by too many cars trying to squeeze through a narrow checkpoint. If the checkpoint can’t handle the volume, it might burst and cause chaos on the road! The vulnerability in addrtoname.c:lookup_nsap() allows excessive data to overflow the buffer, which can corrupt adjacent memory and potentially execute arbitrary code or crash the application.

What to do

If exploited, this buffer overflow could allow attackers to corrupt memory, potentially leading to crashes or unexpected behavior in tcpdump. While that might not sound like the end of the world, it could compromise network monitoring and lead to gaps in security oversight—yikes! To shore up security, upgrade tcpdump to version 4.9.0 or later, where this issue has been addressed. Regularly check for updates to maintain your network tools' integrity. 🛡️ You've got this! Staying proactive with your updates will keep your systems secure and running smoothly! 💪✨

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 ISO CLNS parser in tcpdump before 4.9.0 has a buffer overflow in addrtoname.c:lookup_nsap()
    cvelistv5