CVE-2018-17974

Public Exploit

Description

An issue was discovered in Tcpreplay 4.3.0 beta1. A heap-based buffer over-read was triggered in the function dlt_en10mb_encode() of the file plugins/dlt_en10mb/en10mb.c, due to inappropriate values in the function memmove(). The length (pktlen + ctx -> l2len) can be larger than source value (packet + ctx->l2len) because the function fails to ensure the length of a packet is valid. This leads to Denial of Service.

Category

5.5
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.22%
Third-Party Advisory github.com Third-Party Advisory github.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/appneta/tcpreplay/issues/486 third party advisory exploit
https://github.com/SegfaultMasters/covering360/tree/master/tcpreplay third party advisory exploit

Frequently Asked Questions

What is the severity of CVE-2018-17974?
CVE-2018-17974 has been scored as a medium severity vulnerability.
How to fix CVE-2018-17974?
To fix CVE-2018-17974, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2018-17974 being actively exploited in the wild?
It is possible that CVE-2018-17974 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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