What is CVE-2017-9998?

CVE-2017-9998 is a medium-severity vulnerability in Libdwarf Project, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 6.5/10. Published 2017-06-28.

How severe is CVE-2017-9998?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Buffer overflow in Libdwarf Project

CVE-2017-9998

The _dwarf_decode_s_leb128_chk function in dwarf_leb.c in libdwarf through 2017-06-28 allows remote attackers to cause a denial of service (Segmentation fault) via a crafted file.

Vulnerability class: Buffer Overflow

Published 2017-06-28 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.020 (80.2th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 80th percentile — 80.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.020 · newest: 0.020 · change: 0.000

Affected products

Libdwarf Project

Weakness classification (CWE)

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

References

bugzilla.redhat.com/show_bug.cgi (Exploit, Third Party Advisory, Issue Tracking)
www.securityfocus.com/bid/99310 (VDB Entry, Third Party Advisory, vdb-entry)

Frequently asked questions

What is CVE-2017-9998?: CVE-2017-9998 is a medium-severity vulnerability in Libdwarf Project, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 6.5/10. Published 2017-06-28.
How severe is CVE-2017-9998?: Medium severity. CVSS v3 base score is 6.5 out of 10.