Medium severity · published Oct 3, 2018
CVE-2018-17974
An issue was discovered in Tcpreplay 4.3.0 beta1
5.5
CVSS
1%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.0% · higher than 62% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
TC
Tcpreplay · Broadcom
4.3.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-17974
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-17974
Exploit
https://github.com/SegfaultMasters/covering360/tree/master/tcpreplay
Exploit
https://github.com/appneta/tcpreplay/issues/486
More from Tcpreplay
9.8
CVE-2018-18408
A use-after-free was discovered in the tcpbridge binary of Tcpreplay 4.3.0 beta1
9.1
CVE-2020-12740
tcprewrite in Tcpreplay through 4.3.2 has a heap-based buffer over-read during a get_c operation
7.8
CVE-2025-51006
Within tcpreplay's tcprewrite, a double free vulnerability has been identified in the dlt_linuxsll2_cleanup() function in plugins/dlt_linuxsll2/linuxsll2.c
7.8
CVE-2024-3024
A vulnerability was found in appneta tcpreplay up to 4.4.4
7.8
CVE-2022-37049
The component tcpprep in Tcpreplay v4.4.1 was discovered to contain a heap-based buffer overflow in parse_mpls at common/get.c:150