What is CVE-2018-7643?

CVE-2018-7643 is a high-severity vulnerability in GNU Binutils, classified under Integer Overflow or Wraparound. CVSS score: 7.8/10. Published 2018-03-02.

How severe is CVE-2018-7643?

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

Is CVE-2018-7643 known to be exploited?

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

Integer overflow in GNU Binutils

CVE-2018-7643

The display_debug_ranges function in dwarf.c in GNU Binutils 2.30 allows remote attackers to cause a denial of service (integer overflow and application crash) or possibly have unspecified other impact via a crafted ELF file, as demonstrated by objdump.

Vulnerability class: Integer Overflow

Published 2018-03-02 · last modified 2026-06-17.

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.

EPSS exploit prediction

EPSS: 0.023 (82.8th percentile), scored 2026-09-28.

Low probability of exploitation in the next 30 days, but still tracked. 83rd percentile — 82.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.023 · newest: 0.023 · change: 0.000

Affected products

GNU Binutils — versions 2.30
Red Hat Enterprise Linux Desktop — versions 7.0
Red Hat Enterprise Linux Server — versions 7.0
Red Hat Enterprise Linux Workstation — versions 7.0

Weakness classification (CWE)

CWE-190 — Integer Overflow or Wraparound

Public proof-of-concept exploits

andir/nixos-issue-db-example

References

www.securityfocus.com/bid/103264 (VDB Entry, Third Party Advisory, vdb-entry)
access.redhat.com/errata/RHSA-2018:3032 (vendor-advisory, Third Party Advisory)
security.gentoo.org/glsa/201811-17 (vendor-advisory, Third Party Advisory)
sourceware.org/bugzilla/show_bug.cgi (Third Party Advisory, Issue Tracking)
access.redhat.com/errata/RHBA-2019:0327 (vendor-advisory, Third Party Advisory)
lists.opensuse.org/opensuse-security-announce/2019-10/msg00072.html (vendor-advisory)
lists.opensuse.org/opensuse-security-announce/2019-11/msg00008.html (vendor-advisory)

Frequently asked questions

What is CVE-2018-7643?: CVE-2018-7643 is a high-severity vulnerability in GNU Binutils, classified under Integer Overflow or Wraparound. CVSS score: 7.8/10. Published 2018-03-02.
How severe is CVE-2018-7643?: High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2018-7643 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.