CVE-2017-12897 Memory corruption in n/a

Critical 9.8 Published Updated

A buffer over-read in tcpdump's ISO CLNS parser allows attackers to cause denial of service or disclose sensitive memory contents.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2017-12897?

CVE-2017-12897 is a critical memory corruption vulnerability in Tcpdump Tcpdump, published on 14 Sep 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The ISO CLNS parser in tcpdump before 4.9.2 has a buffer over-read in print-isoclns.c:isoclns_print().

Weakness: CWE-125

Which versions are affected by CVE-2017-12897?

It affects 1 product.

Products include Tcpdump Tcpdump.

How do I fix CVE-2017-12897?

Upgrade to a fixed version.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2017-12897 being exploited?

There is no known exploitation of CVE-2017-12897 in the wild and no public exploit code.

All Tcpdump Tcpdump vulnerabilities

Sources

Also known as DEBIAN-CVE-2017-12897, GHSA-mm39-r2qj-ccxx, UBUNTU-CVE-2017-12897.

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