Out-of-bounds Read in Broadcom Tcpreplay

CVE-2018-20553

Tcpreplay before 4.3.1 has a heap-based buffer over-read in get_l2len in common/get.c.

Vulnerability class: Buffer Overflow

EPSS: 0.012 (65.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Broadcom Tcpreplay
N/a — versions n/a

Weakness classification (CWE)

CWE-125 — Out-of-bounds Read

Public proof-of-concept exploits

Marsman1996/pocs

References

cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)
cve@mitre.org (Patch, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2018-20553?: CVE-2018-20553 is a high-severity vulnerability in Broadcom Tcpreplay, classified under Out-of-bounds Read. CVSS score: 7.8/10. Published 2018-12-28.
How severe is CVE-2018-20553?: High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2018-20553 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.