What is CVE-2018-20343?

CVE-2018-20343 is a high-severity vulnerability in Advsys Build Engine, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.8/10. Published 2020-03-02.

How severe is CVE-2018-20343?

High severity. CVSS v3 base score is 7.8 out of 10.

Is CVE-2018-20343 known to be exploited?

4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in Advsys Build Engine

CVE-2018-20343

Multiple buffer overflow vulnerabilities have been found in Ken Silverman Build Engine 1. An attacker could craft a special map file to execute arbitrary code when the map file is loaded.

Vulnerability class: Buffer Overflow

EPSS: 0.022 (80.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Advsys Build_engine — versions 1.0
N/a — versions n/a

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

Public proof-of-concept exploits

References

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

Frequently asked questions

What is CVE-2018-20343?: CVE-2018-20343 is a high-severity vulnerability in Advsys Build Engine, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.8/10. Published 2020-03-02.
How severe is CVE-2018-20343?: High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2018-20343 known to be exploited?: 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.