Is CVE-2017-5485 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2017-5485 being exploited in the wild.

How severe is CVE-2017-5485?

Critical severity, with a CVSS score of 9.8, published 28 January 2017.

Which products and versions are affected?

Tcpdump Project tcpdump before 4.9.0.

Is there a fix for CVE-2017-5485?

A patch was published on 2017-01-26: Upstream release 4.9.0 fixes the issue. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2017-5485 attacked?

It is attacked over the network, in a software library.

Am I affected by CVE-2017-5485?

Check whether you run Tcpdump. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2017-5485: Tcpdump buffer overflow in ISO CLNS parser lookup_nsap function

CVE-2017-5485 · Severity: critical · CVSS 9.8 · Published 2017-01-28

A vulnerability was found in tcpdump, a widely used tool for monitoring and analyzing network traffic. By sending specially crafted network packets or providing a malicious capture file, an attacker could cause the application to crash or potentially execute unauthorized code. This could lead to a disruption of network monitoring services or a compromise of the system running the tool.

Technologies: Tcpdump. Vendors: Tcpdump.

Quick answers

Is CVE-2017-5485 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2017-5485 being exploited in the wild.
How severe is CVE-2017-5485?: Critical severity, with a CVSS score of 9.8, published 28 January 2017.
Which products and versions are affected?: Tcpdump Project tcpdump before 4.9.0.
Is there a fix for CVE-2017-5485?: A patch was published on 2017-01-26: Upstream release 4.9.0 fixes the issue. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2017-5485 attacked?: It is attacked over the network, in a software library.
Am I affected by CVE-2017-5485?: Check whether you run Tcpdump. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A buffer overflow vulnerability exists in tcpdump versions prior to 4.9.0 within the ISO CLNS (Connectionless Network Service) parser. The flaw is located in the lookup_nsap() function in addrtoname.c. A remote attacker can exploit this by sending specially crafted network packets to a segment where tcpdump is performing live capture, or by tricking a user into opening a malicious pcap file. Successful exploitation can lead to a denial of service (application crash) or potentially arbitrary code execution with the privileges of the tcpdump process. The issue is addressed in version 4.9.0.

Affected products

Tcpdump Project tcpdump before 4.9.0

Timeline

2017-01-26: patched: Upstream release 4.9.0 fixes the issue.
2017-01-28: disclosed: NVD publication date.

References

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