Is CVE-2018-20671 in the CISA KEV catalog?

No. CVE-2018-20671 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2018-20671?

CVE-2018-20671 has a CVSS v3 base score of 5.5 (MEDIUM).

What is the EPSS score for CVE-2018-20671?

CVE-2018-20671 has an EPSS score of 1.97% (78th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2018-20671?

Upgrade binutils on debian 11 to 2.32.51.20190707-1 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2018-20671

MEDIUMEPSS 78th pctl

5.5

CVSS v3

NVD

Description

load_specific_debug_section in objdump.c in GNU Binutils through 2.31.1 contains an integer overflow vulnerability that can trigger a heap-based buffer overflow via a crafted section size.

CWE-190Integer Overflow CWE-787Out-of-bounds Write

How to fix

Remediation Available

binutilsDebian

Fixed in:2.32.51.20190707-1CVE-2018-20671

binutilsUbuntu

Fixed in:2.24-5ubuntu14.2+esm5USN-6413-1

Fixed in:2.26.1-1ubuntu1~16.04.8+esm1USN-4336-2

Fixed in:2.26.1-1ubuntu1~16.04.8+esm9USN-6413-1

Fixed in:2.30-21ubuntu1~18.04.3USN-4336-1

Fixed in:2.30-21ubuntu1~18.04.9+esm3USN-6413-1

binutils-multiarchUbuntu

Fixed in:2.24-5ubuntu14.2+esm5USN-6413-1

Fixed in:2.26.1-1ubuntu1~16.04.8+esm9USN-6413-1

Fixed in:2.26.1-1ubuntu1~16.04.8+esm1USN-4336-2

Fixed in:2.30-21ubuntu1~18.04.9+esm3USN-6413-1

Fixed in:2.30-21ubuntu1~18.04.3USN-4336-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

1.97%probability of exploitation in 30 days

78thpercentile

Elevated risk: more likely to be exploited than 78% of all known CVEs.

References

Exploit1

sourceware.org

Third-Party Advisory1

securityfocus.com

Other references4

Related Vulnerabilities

Other CWE-190 (Integer Overflow) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2020-16040	Medium	6.5	100%	-	Fix
CVE-2019-11477	High	7.5	99%	-	Fix
CVE-2023-44443	High	7.8	94%	-	Fix
CVE-2014-0569	High	9.3	90%	-	-
CVE-2017-3599	High	7.5	90%	-	Fix
CVE-2023-21716	Critical	9.8	82%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.