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CVE-2018-20671

21
FAUCET Score

CVE-2018-20671 is an integer overflow vulnerability in GNU Binutils through version 2.31.1, specifically within the objdump.c component's load_specific_debug_section function. This flaw can lead to a heap-based buffer overflow when processing a specially crafted section size. With a CVSS score of 5.5 (Medium), it requires local access and user interaction (e.g., opening a malicious file) to achieve a high impact on availability, but no impact on confidentiality or integrity. There is no known active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.31.1CPE matchmatch criteria
cpe:2.3:a:gnu:binutils:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.5MEDIUM

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.97%
Probability of exploitation in next 30 days
EPSS Percentile
78.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0197 is in the 89th percentile among its peer group of 5,765 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: binutils

Vendor Advisories (1)

redhatCVE-2018-20671Moderate

binutils: Integer overflow in load_specific_debug_section function

Dec 19, 2018

References

lists.opensuse.org / opensuse-security-announce/2019-10/msg00072.html
lists.opensuse.org / opensuse-security-announce/2019-11/msg00008.html
sourceware.org / bugzilla/show_bug.cgi
ExploitIssue TrackingThird Party Advisory
sourceware.org / git/gitweb.cgi
usn.ubuntu.com / 4336-1
securityfocus.com / bid/106457
Third Party AdvisoryVDB Entry