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Vulnerability details: VCID-8gnf-1b5b-ubcb
Vulnerability ID VCID-8gnf-1b5b-ubcb
Aliases CVE-2018-12359
Summary A buffer overflow can occur when rendering canvas content while adjusting the height and width of the <canvas> element dynamically, causing data to be written outside of the currently computed boundaries. This results in a potentially exploitable crash.
Status Published
Exploitability 0.5
Weighted Severity 9.0
Risk 4.5
Affected and Fixed Packages Package Details
Weaknesses (2)
CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
System Score Found at
cvssv3 8.8 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-12359.json
epss 0.01474 https://api.first.org/data/v1/epss?cve=CVE-2018-12359
epss 0.01474 https://api.first.org/data/v1/epss?cve=CVE-2018-12359
epss 0.01474 https://api.first.org/data/v1/epss?cve=CVE-2018-12359
epss 0.01474 https://api.first.org/data/v1/epss?cve=CVE-2018-12359
epss 0.01474 https://api.first.org/data/v1/epss?cve=CVE-2018-12359
epss 0.01474 https://api.first.org/data/v1/epss?cve=CVE-2018-12359
epss 0.01474 https://api.first.org/data/v1/epss?cve=CVE-2018-12359
epss 0.01474 https://api.first.org/data/v1/epss?cve=CVE-2018-12359
epss 0.01474 https://api.first.org/data/v1/epss?cve=CVE-2018-12359
epss 0.01474 https://api.first.org/data/v1/epss?cve=CVE-2018-12359
epss 0.01474 https://api.first.org/data/v1/epss?cve=CVE-2018-12359
epss 0.01474 https://api.first.org/data/v1/epss?cve=CVE-2018-12359
epss 0.01474 https://api.first.org/data/v1/epss?cve=CVE-2018-12359
epss 0.01474 https://api.first.org/data/v1/epss?cve=CVE-2018-12359
epss 0.01503 https://api.first.org/data/v1/epss?cve=CVE-2018-12359
epss 0.01503 https://api.first.org/data/v1/epss?cve=CVE-2018-12359
epss 0.01503 https://api.first.org/data/v1/epss?cve=CVE-2018-12359
epss 0.01503 https://api.first.org/data/v1/epss?cve=CVE-2018-12359
cvssv3 8.8 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv2 6.8 https://nvd.nist.gov/vuln/detail/CVE-2018-12359
cvssv3 8.8 https://nvd.nist.gov/vuln/detail/CVE-2018-12359
archlinux Critical https://security.archlinux.org/AVG-727
archlinux Critical https://security.archlinux.org/AVG-728
generic_textual critical https://www.mozilla.org/en-US/security/advisories/mfsa2018-15
generic_textual critical https://www.mozilla.org/en-US/security/advisories/mfsa2018-16
generic_textual critical https://www.mozilla.org/en-US/security/advisories/mfsa2018-17
generic_textual critical https://www.mozilla.org/en-US/security/advisories/mfsa2018-18
generic_textual critical https://www.mozilla.org/en-US/security/advisories/mfsa2018-19
Reference id Reference type URL
https://access.redhat.com/errata/RHSA-2018:2112
https://access.redhat.com/errata/RHSA-2018:2113
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-12359.json
https://api.first.org/data/v1/epss?cve=CVE-2018-12359
https://bugzilla.mozilla.org/show_bug.cgi?id=1459162
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-12359
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-12360
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-12362
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-12363
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-12364
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-12365
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-12366
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-12372
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-12373
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-12374
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-5156
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-5188
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://lists.debian.org/debian-lts-announce/2018/06/msg00014.html
https://lists.debian.org/debian-lts-announce/2018/07/msg00013.html
https://security.gentoo.org/glsa/201810-01
https://security.gentoo.org/glsa/201811-13
https://www.debian.org/security/2018/dsa-4235
https://www.debian.org/security/2018/dsa-4244
https://www.mozilla.org/security/advisories/mfsa2018-15/
https://www.mozilla.org/security/advisories/mfsa2018-16/
https://www.mozilla.org/security/advisories/mfsa2018-17/
https://www.mozilla.org/security/advisories/mfsa2018-18/
https://www.mozilla.org/security/advisories/mfsa2018-19/
http://www.securityfocus.com/bid/104555
http://www.securitytracker.com/id/1041193
1595024 https://bugzilla.redhat.com/show_bug.cgi?id=1595024
ASA-201806-14 https://security.archlinux.org/ASA-201806-14
ASA-201807-4 https://security.archlinux.org/ASA-201807-4
AVG-727 https://security.archlinux.org/AVG-727
AVG-728 https://security.archlinux.org/AVG-728
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:thunderbird:52.9.1:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:mozilla:thunderbird:52.9.1:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_eus:7.5:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:enterprise_linux_server_eus:7.5:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_eus:7.6:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:enterprise_linux_server_eus:7.6:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*
CVE-2018-12359 https://nvd.nist.gov/vuln/detail/CVE-2018-12359
mfsa2018-15 https://www.mozilla.org/en-US/security/advisories/mfsa2018-15
mfsa2018-16 https://www.mozilla.org/en-US/security/advisories/mfsa2018-16
mfsa2018-17 https://www.mozilla.org/en-US/security/advisories/mfsa2018-17
mfsa2018-18 https://www.mozilla.org/en-US/security/advisories/mfsa2018-18
mfsa2018-19 https://www.mozilla.org/en-US/security/advisories/mfsa2018-19
RHSA-2018:2251 https://access.redhat.com/errata/RHSA-2018:2251
RHSA-2018:2252 https://access.redhat.com/errata/RHSA-2018:2252
USN-3705-1 https://usn.ubuntu.com/3705-1/
USN-3714-1 https://usn.ubuntu.com/3714-1/
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-2018-12359.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:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/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-2018-12359
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-2018-12359
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 0.80232
EPSS Score 0.01474
Published At Aug. 3, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:09:51.528390+00:00 Mozilla Importer Import https://github.com/mozilla/foundation-security-advisories/blob/master/announce/2018/mfsa2018-18.yml 37.0.0