What is CVE-2015-1521?

CVE-2015-1521 is a high-severity vulnerability in Bro, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.5/10. Published 2017-04-24.

How severe is CVE-2015-1521?

High severity. CVSS v3 base score is 7.5 out of 10.

Buffer overflow in Bro

CVE-2015-1521

analyzer/protocol/dnp3/DNP3.cc in Bro before 2.3.2 does not properly handle zero values of a packet length, which allows remote attackers to cause a denial of service (buffer overflow or buffer over-read if NDEBUG; otherwise assertion failure) via a crafted DNP3 packet.

Vulnerability class: Buffer Overflow

EPSS: 0.018 (76.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Bro
N/a — versions n/a

Weakness classification (CWE)

CWE-119 — Improper Restriction of Operations within the Bounds of a Memory Buffer

References

cve@mitre.org (x_refsource_CONFIRM, Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2015-1521?: CVE-2015-1521 is a high-severity vulnerability in Bro, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.5/10. Published 2017-04-24.
How severe is CVE-2015-1521?: High severity. CVSS v3 base score is 7.5 out of 10.