Is CVE-2018-18309 in the CISA KEV catalog?

No. CVE-2018-18309 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2018-18309?

CVE-2018-18309 has a CVSS v3 base score of 5.5 (MEDIUM).

What is the EPSS score for CVE-2018-18309?

CVE-2018-18309 has an EPSS score of 1.82% (76th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2018-18309?

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-2018-18309

MEDIUMEPSS 76th pctl

5.5

CVSS v3

NVD

Description

An issue was discovered in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.31. An invalid memory address dereference was discovered in read_reloc in reloc.c. The vulnerability causes a segmentation fault and application crash, which leads to denial of service, as demonstrated by objdump, because of missing _bfd_clear_contents bounds checking.

CWE-119Buffer Overflow

How to fix

Remediation Available

binutilsDebian

Fixed in:2.32.51.20190707-1CVE-2018-18309

binutilsUbuntu

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

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

binutils-multiarchUbuntu

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

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

1.82%probability of exploitation in 30 days

76thpercentile

Elevated risk: more likely to be exploited than 76% of all known CVEs.

References

Patch1

sourceware.org

Third-Party Advisory1

securityfocus.com

Other references4

Related Vulnerabilities

Other CWE-119 (Buffer Overflow) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-4966	Critical	9.4	100%	KEV + Ransom	Fix
CVE-2017-11882	High	7.8	100%	KEV + Ransom	-
CVE-2020-0796	Critical	10.0	100%	KEV + Ransom	-
CVE-2008-4250	Critical	9.8	99%	KEV	-
CVE-2017-15944	Critical	9.8	98%	KEV	Fix
CVE-2015-0014	High	10.0	97%	-	-

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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.