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Vulnerability details: VCID-w426-4aba-aaak
Vulnerability ID VCID-w426-4aba-aaak
Aliases CVE-2019-8623
Summary Multiple memory corruption issues were addressed with improved memory handling. This issue is fixed in iOS 12.3, macOS Mojave 10.14.5, tvOS 12.3, watchOS 5.2.1, Safari 12.1.1, iTunes for Windows 12.9.5, iCloud for Windows 7.12. Processing maliciously crafted web content may lead to arbitrary code execution.
Status Published
Exploitability 2.0
Weighted Severity 7.9
Risk 10.0
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-787 Out-of-bounds Write
System Score Found at
generic_textual Medium http://people.canonical.com/~ubuntu-security/cve/2019/CVE-2019-8623.html
rhas Moderate https://access.redhat.com/errata/RHSA-2020:4035
cvssv3 8.8 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2019-8623.json
epss 0.07313 https://api.first.org/data/v1/epss?cve=CVE-2019-8623
epss 0.07534 https://api.first.org/data/v1/epss?cve=CVE-2019-8623
epss 0.07534 https://api.first.org/data/v1/epss?cve=CVE-2019-8623
epss 0.07534 https://api.first.org/data/v1/epss?cve=CVE-2019-8623
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epss 0.07534 https://api.first.org/data/v1/epss?cve=CVE-2019-8623
epss 0.07534 https://api.first.org/data/v1/epss?cve=CVE-2019-8623
epss 0.07534 https://api.first.org/data/v1/epss?cve=CVE-2019-8623
epss 0.07534 https://api.first.org/data/v1/epss?cve=CVE-2019-8623
epss 0.09164 https://api.first.org/data/v1/epss?cve=CVE-2019-8623
epss 0.09164 https://api.first.org/data/v1/epss?cve=CVE-2019-8623
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epss 0.26464 https://api.first.org/data/v1/epss?cve=CVE-2019-8623
epss 0.27094 https://api.first.org/data/v1/epss?cve=CVE-2019-8623
epss 0.27094 https://api.first.org/data/v1/epss?cve=CVE-2019-8623
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epss 0.27094 https://api.first.org/data/v1/epss?cve=CVE-2019-8623
epss 0.27094 https://api.first.org/data/v1/epss?cve=CVE-2019-8623
epss 0.27094 https://api.first.org/data/v1/epss?cve=CVE-2019-8623
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epss 0.27094 https://api.first.org/data/v1/epss?cve=CVE-2019-8623
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epss 0.27094 https://api.first.org/data/v1/epss?cve=CVE-2019-8623
epss 0.27094 https://api.first.org/data/v1/epss?cve=CVE-2019-8623
epss 0.27094 https://api.first.org/data/v1/epss?cve=CVE-2019-8623
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epss 0.27094 https://api.first.org/data/v1/epss?cve=CVE-2019-8623
epss 0.33958 https://api.first.org/data/v1/epss?cve=CVE-2019-8623
epss 0.33958 https://api.first.org/data/v1/epss?cve=CVE-2019-8623
epss 0.33958 https://api.first.org/data/v1/epss?cve=CVE-2019-8623
epss 0.33958 https://api.first.org/data/v1/epss?cve=CVE-2019-8623
epss 0.33958 https://api.first.org/data/v1/epss?cve=CVE-2019-8623
epss 0.33958 https://api.first.org/data/v1/epss?cve=CVE-2019-8623
epss 0.33958 https://api.first.org/data/v1/epss?cve=CVE-2019-8623
epss 0.33958 https://api.first.org/data/v1/epss?cve=CVE-2019-8623
epss 0.33958 https://api.first.org/data/v1/epss?cve=CVE-2019-8623
epss 0.33958 https://api.first.org/data/v1/epss?cve=CVE-2019-8623
epss 0.33958 https://api.first.org/data/v1/epss?cve=CVE-2019-8623
epss 0.33958 https://api.first.org/data/v1/epss?cve=CVE-2019-8623
epss 0.33958 https://api.first.org/data/v1/epss?cve=CVE-2019-8623
epss 0.33958 https://api.first.org/data/v1/epss?cve=CVE-2019-8623
epss 0.33958 https://api.first.org/data/v1/epss?cve=CVE-2019-8623
rhbs medium https://bugzilla.redhat.com/show_bug.cgi?id=1877049
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-8623
cvssv2 6.8 https://nvd.nist.gov/vuln/detail/CVE-2019-8623
cvssv3 8.8 https://nvd.nist.gov/vuln/detail/CVE-2019-8623
cvssv3.1 8.8 https://nvd.nist.gov/vuln/detail/CVE-2019-8623
generic_textual Medium https://webkitgtk.org/security/WSA-2019-0003.html
Reference id Reference type URL
http://people.canonical.com/~ubuntu-security/cve/2019/CVE-2019-8623.html
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2019-8623.json
https://api.first.org/data/v1/epss?cve=CVE-2019-8623
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-8623
https://support.apple.com/HT210118
https://support.apple.com/HT210119
https://support.apple.com/HT210120
https://support.apple.com/HT210122
https://support.apple.com/HT210123
https://support.apple.com/HT210124
https://support.apple.com/HT210125
https://support.apple.com/HT210212
https://webkitgtk.org/security/WSA-2019-0003.html
1877049 https://bugzilla.redhat.com/show_bug.cgi?id=1877049
cpe:2.3:a:apple:icloud:*:*:*:*:*:windows:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:apple:icloud:*:*:*:*:*:windows:*:*
cpe:2.3:a:apple:itunes:*:*:*:*:*:windows:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:apple:itunes:*:*:*:*:*:windows:*:*
cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*
CVE-2019-8623 Exploit https://bugs.chromium.org/p/project-zero/issues/detail?id=1789
CVE-2019-8623 Exploit https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/multiple/dos/46889.txt
CVE-2019-8623 https://nvd.nist.gov/vuln/detail/CVE-2019-8623
RHSA-2020:4035 https://access.redhat.com/errata/RHSA-2020:4035
Data source Exploit-DB
Date added May 21, 2019
Description Apple macOS < 10.14.5 / iOS < 12.3 JavaScriptCore - Loop-Invariant Code Motion (LICM) in DFG JIT Leaves Stack Variable Uninitialized
Ransomware campaign use Known
Source publication date May 21, 2019
Exploit type dos
Platform multiple
Source update date May 21, 2019
Source URL https://bugs.chromium.org/p/project-zero/issues/detail?id=1789
Vector: CVSS:3.1/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-2019-8623.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: AV:N/AC:M/Au:N/C:P/I:P/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2019-8623
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:3.1/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-2019-8623
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:3.1/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-2019-8623
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 0.94027
EPSS Score 0.07313
Published At Jan. 16, 2025, midnight
Date Actor Action Source VulnerableCode Version
There are no relevant records.