Is CVE-2018-7999 in the CISA KEV catalog?

No. CVE-2018-7999 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2018-7999?

CVE-2018-7999 has a CVSS v3 base score of 8.8 (HIGH).

What is the EPSS score for CVE-2018-7999?

CVE-2018-7999 has an EPSS score of 2.32% (81th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2018-7999?

Upgrade graphite2 on debian 11 to 1.3.11-2 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2018-7999

HIGHEPSS 81th pctl

8.8

CVSS v3

NVD

Description

In libgraphite2 in graphite2 1.3.11, a NULL pointer dereference vulnerability was found in Segment.cpp during a dumbRendering operation, which may allow attackers to cause a denial of service or possibly have unspecified other impact via a crafted .ttf file.

CWE-476NULL Pointer Dereference

How to fix

Remediation Available

graphite2Debian

Fixed in:1.3.11-2CVE-2018-7999

graphite2Ubuntu

Fixed in:1.3.10-0ubuntu0.16.04.1+esm1USN-5657-1

libgraphite2-3Ubuntu

Fixed in:1.3.10-0ubuntu0.16.04.1+esm1USN-5657-1

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 VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

2.32%probability of exploitation in 30 days

81stpercentile

Elevated risk: more likely to be exploited than 81% of all known CVEs.

References

Patch1

github.com

Exploit1

github.com

Other references2

Related Vulnerabilities

Other CWE-476 (NULL Pointer Dereference) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-21758	High	7.5	92%	-	Fix
CVE-2023-21547	High	7.5	88%	-	Fix
CVE-2014-3470	Medium	4.3	86%	-	Fix
CVE-2021-44224	High	8.2	82%	-	Fix
CVE-2016-0742	High	7.5	82%	-	Fix
CVE-2009-1386	Medium	5.0	80%	-	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.