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Vulnerability details: VCID-czwf-6b9h-uucu
Vulnerability ID VCID-czwf-6b9h-uucu
Aliases CVE-2018-7999
Summary 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.
Status Published
Exploitability 0.5
Weighted Severity 7.9
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-476 NULL Pointer Dereference
System Score Found at
cvssv3 8.8 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-7999.json
epss 0.0018 https://api.first.org/data/v1/epss?cve=CVE-2018-7999
epss 0.0018 https://api.first.org/data/v1/epss?cve=CVE-2018-7999
epss 0.00189 https://api.first.org/data/v1/epss?cve=CVE-2018-7999
epss 0.00189 https://api.first.org/data/v1/epss?cve=CVE-2018-7999
epss 0.00189 https://api.first.org/data/v1/epss?cve=CVE-2018-7999
epss 0.00189 https://api.first.org/data/v1/epss?cve=CVE-2018-7999
epss 0.00189 https://api.first.org/data/v1/epss?cve=CVE-2018-7999
epss 0.00189 https://api.first.org/data/v1/epss?cve=CVE-2018-7999
epss 0.00189 https://api.first.org/data/v1/epss?cve=CVE-2018-7999
epss 0.00189 https://api.first.org/data/v1/epss?cve=CVE-2018-7999
epss 0.00189 https://api.first.org/data/v1/epss?cve=CVE-2018-7999
epss 0.00189 https://api.first.org/data/v1/epss?cve=CVE-2018-7999
epss 0.00189 https://api.first.org/data/v1/epss?cve=CVE-2018-7999
epss 0.00189 https://api.first.org/data/v1/epss?cve=CVE-2018-7999
epss 0.00189 https://api.first.org/data/v1/epss?cve=CVE-2018-7999
epss 0.00189 https://api.first.org/data/v1/epss?cve=CVE-2018-7999
epss 0.00189 https://api.first.org/data/v1/epss?cve=CVE-2018-7999
epss 0.00189 https://api.first.org/data/v1/epss?cve=CVE-2018-7999
epss 0.00189 https://api.first.org/data/v1/epss?cve=CVE-2018-7999
epss 0.00189 https://api.first.org/data/v1/epss?cve=CVE-2018-7999
epss 0.00189 https://api.first.org/data/v1/epss?cve=CVE-2018-7999
epss 0.00189 https://api.first.org/data/v1/epss?cve=CVE-2018-7999
epss 0.00189 https://api.first.org/data/v1/epss?cve=CVE-2018-7999
epss 0.00189 https://api.first.org/data/v1/epss?cve=CVE-2018-7999
epss 0.00189 https://api.first.org/data/v1/epss?cve=CVE-2018-7999
epss 0.00189 https://api.first.org/data/v1/epss?cve=CVE-2018-7999
epss 0.00189 https://api.first.org/data/v1/epss?cve=CVE-2018-7999
epss 0.00189 https://api.first.org/data/v1/epss?cve=CVE-2018-7999
epss 0.00189 https://api.first.org/data/v1/epss?cve=CVE-2018-7999
cvssv3 5.5 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv2 6.8 https://nvd.nist.gov/vuln/detail/CVE-2018-7999
cvssv3 8.8 https://nvd.nist.gov/vuln/detail/CVE-2018-7999
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-7999.json
https://api.first.org/data/v1/epss?cve=CVE-2018-7999
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-7999
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://github.com/silnrsi/graphite/commit/db132b4731a9b4c9534144ba3a18e65b390e9ff6
https://github.com/silnrsi/graphite/issues/22
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L5F3CK2IPXFCLQZEBEEXONWIABN2E7H2/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LVWOKYZZDEMG6VSG53KAGUOHUIIQ7CND/
1554380 https://bugzilla.redhat.com/show_bug.cgi?id=1554380
892590 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=892590
cpe:2.3:a:sil:graphite2:1.3.11:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:sil:graphite2:1.3.11:*:*:*:*:*:*:*
CVE-2018-7999 https://nvd.nist.gov/vuln/detail/CVE-2018-7999
USN-5657-1 https://usn.ubuntu.com/5657-1/
No exploits are available.
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-7999.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Found at https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2018-7999
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2018-7999
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.39985
EPSS Score 0.0018
Published At Sept. 23, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:38:56.732468+00:00 Ubuntu USN Importer Import https://usn.ubuntu.com/5657-1/ 37.0.0