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Vulnerability details: VCID-7rr5-3pyh-aaak
Vulnerability ID VCID-7rr5-3pyh-aaak
Aliases CVE-2019-9791
Summary The type inference system allows the compilation of functions that can cause type confusions between arbitrary objects when compiled through the IonMonkey just-in-time (JIT) compiler and when the constructor function is entered through on-stack replacement (OSR). This allows for possible arbitrary reading and writing of objects during an exploitable crash. This vulnerability affects Thunderbird < 60.6, Firefox ESR < 60.6, and Firefox < 66.
Status Published
Exploitability 2.0
Weighted Severity 9.0
Risk 10.0
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-843 Access of Resource Using Incompatible Type ('Type Confusion')
System Score Found at
generic_textual Medium http://people.canonical.com/~ubuntu-security/cve/2019/CVE-2019-9791.html
cvssv3 9.8 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2019-9791.json
epss 0.19997 https://api.first.org/data/v1/epss?cve=CVE-2019-9791
epss 0.19997 https://api.first.org/data/v1/epss?cve=CVE-2019-9791
epss 0.19997 https://api.first.org/data/v1/epss?cve=CVE-2019-9791
epss 0.19997 https://api.first.org/data/v1/epss?cve=CVE-2019-9791
epss 0.22045 https://api.first.org/data/v1/epss?cve=CVE-2019-9791
epss 0.22045 https://api.first.org/data/v1/epss?cve=CVE-2019-9791
epss 0.22045 https://api.first.org/data/v1/epss?cve=CVE-2019-9791
epss 0.22045 https://api.first.org/data/v1/epss?cve=CVE-2019-9791
epss 0.22045 https://api.first.org/data/v1/epss?cve=CVE-2019-9791
epss 0.22045 https://api.first.org/data/v1/epss?cve=CVE-2019-9791
epss 0.22045 https://api.first.org/data/v1/epss?cve=CVE-2019-9791
epss 0.22045 https://api.first.org/data/v1/epss?cve=CVE-2019-9791
epss 0.22045 https://api.first.org/data/v1/epss?cve=CVE-2019-9791
epss 0.22045 https://api.first.org/data/v1/epss?cve=CVE-2019-9791
epss 0.22045 https://api.first.org/data/v1/epss?cve=CVE-2019-9791
epss 0.22045 https://api.first.org/data/v1/epss?cve=CVE-2019-9791
epss 0.38199 https://api.first.org/data/v1/epss?cve=CVE-2019-9791
epss 0.38199 https://api.first.org/data/v1/epss?cve=CVE-2019-9791
epss 0.38199 https://api.first.org/data/v1/epss?cve=CVE-2019-9791
epss 0.38199 https://api.first.org/data/v1/epss?cve=CVE-2019-9791
epss 0.38199 https://api.first.org/data/v1/epss?cve=CVE-2019-9791
epss 0.38199 https://api.first.org/data/v1/epss?cve=CVE-2019-9791
epss 0.38199 https://api.first.org/data/v1/epss?cve=CVE-2019-9791
epss 0.38199 https://api.first.org/data/v1/epss?cve=CVE-2019-9791
epss 0.38199 https://api.first.org/data/v1/epss?cve=CVE-2019-9791
epss 0.38199 https://api.first.org/data/v1/epss?cve=CVE-2019-9791
epss 0.38199 https://api.first.org/data/v1/epss?cve=CVE-2019-9791
epss 0.38199 https://api.first.org/data/v1/epss?cve=CVE-2019-9791
epss 0.38199 https://api.first.org/data/v1/epss?cve=CVE-2019-9791
epss 0.38199 https://api.first.org/data/v1/epss?cve=CVE-2019-9791
epss 0.38199 https://api.first.org/data/v1/epss?cve=CVE-2019-9791
epss 0.38199 https://api.first.org/data/v1/epss?cve=CVE-2019-9791
epss 0.39295 https://api.first.org/data/v1/epss?cve=CVE-2019-9791
epss 0.39295 https://api.first.org/data/v1/epss?cve=CVE-2019-9791
epss 0.39295 https://api.first.org/data/v1/epss?cve=CVE-2019-9791
epss 0.39295 https://api.first.org/data/v1/epss?cve=CVE-2019-9791
epss 0.39295 https://api.first.org/data/v1/epss?cve=CVE-2019-9791
epss 0.39295 https://api.first.org/data/v1/epss?cve=CVE-2019-9791
epss 0.39295 https://api.first.org/data/v1/epss?cve=CVE-2019-9791
epss 0.39295 https://api.first.org/data/v1/epss?cve=CVE-2019-9791
epss 0.39295 https://api.first.org/data/v1/epss?cve=CVE-2019-9791
epss 0.39295 https://api.first.org/data/v1/epss?cve=CVE-2019-9791
epss 0.39295 https://api.first.org/data/v1/epss?cve=CVE-2019-9791
epss 0.39295 https://api.first.org/data/v1/epss?cve=CVE-2019-9791
epss 0.39295 https://api.first.org/data/v1/epss?cve=CVE-2019-9791
epss 0.39295 https://api.first.org/data/v1/epss?cve=CVE-2019-9791
epss 0.39295 https://api.first.org/data/v1/epss?cve=CVE-2019-9791
epss 0.39295 https://api.first.org/data/v1/epss?cve=CVE-2019-9791
epss 0.39295 https://api.first.org/data/v1/epss?cve=CVE-2019-9791
epss 0.39295 https://api.first.org/data/v1/epss?cve=CVE-2019-9791
epss 0.39295 https://api.first.org/data/v1/epss?cve=CVE-2019-9791
epss 0.39295 https://api.first.org/data/v1/epss?cve=CVE-2019-9791
epss 0.39295 https://api.first.org/data/v1/epss?cve=CVE-2019-9791
epss 0.39295 https://api.first.org/data/v1/epss?cve=CVE-2019-9791
epss 0.39295 https://api.first.org/data/v1/epss?cve=CVE-2019-9791
epss 0.39295 https://api.first.org/data/v1/epss?cve=CVE-2019-9791
epss 0.39295 https://api.first.org/data/v1/epss?cve=CVE-2019-9791
epss 0.39422 https://api.first.org/data/v1/epss?cve=CVE-2019-9791
epss 0.39422 https://api.first.org/data/v1/epss?cve=CVE-2019-9791
epss 0.39422 https://api.first.org/data/v1/epss?cve=CVE-2019-9791
epss 0.39422 https://api.first.org/data/v1/epss?cve=CVE-2019-9791
epss 0.39422 https://api.first.org/data/v1/epss?cve=CVE-2019-9791
epss 0.39422 https://api.first.org/data/v1/epss?cve=CVE-2019-9791
epss 0.39422 https://api.first.org/data/v1/epss?cve=CVE-2019-9791
epss 0.39422 https://api.first.org/data/v1/epss?cve=CVE-2019-9791
epss 0.39422 https://api.first.org/data/v1/epss?cve=CVE-2019-9791
epss 0.39422 https://api.first.org/data/v1/epss?cve=CVE-2019-9791
epss 0.39422 https://api.first.org/data/v1/epss?cve=CVE-2019-9791
epss 0.39422 https://api.first.org/data/v1/epss?cve=CVE-2019-9791
epss 0.39422 https://api.first.org/data/v1/epss?cve=CVE-2019-9791
epss 0.39422 https://api.first.org/data/v1/epss?cve=CVE-2019-9791
epss 0.39422 https://api.first.org/data/v1/epss?cve=CVE-2019-9791
epss 0.5569 https://api.first.org/data/v1/epss?cve=CVE-2019-9791
rhbs urgent https://bugzilla.redhat.com/show_bug.cgi?id=1690676
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-18506
generic_textual Negligible https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9788
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9790
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9791
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9792
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9793
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9795
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9796
cvssv3 7.5 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv2 7.5 https://nvd.nist.gov/vuln/detail/CVE-2019-9791
cvssv3 9.8 https://nvd.nist.gov/vuln/detail/CVE-2019-9791
cvssv3.1 9.8 https://nvd.nist.gov/vuln/detail/CVE-2019-9791
archlinux Critical https://security.archlinux.org/AVG-925
generic_textual Low https://ubuntu.com/security/notices/USN-3918-1
generic_textual Low https://ubuntu.com/security/notices/USN-3918-2
generic_textual Medium https://ubuntu.com/security/notices/USN-3927-1
generic_textual Low https://usn.ubuntu.com/usn/usn-3918-1
generic_textual Low https://usn.ubuntu.com/usn/usn-3918-2
generic_textual Medium https://usn.ubuntu.com/usn/usn-3927-1
generic_textual critical https://www.mozilla.org/en-US/security/advisories/mfsa2019-07
generic_textual Medium https://www.mozilla.org/en-US/security/advisories/mfsa2019-07/#CVE-2019-9791
generic_textual critical https://www.mozilla.org/en-US/security/advisories/mfsa2019-08
generic_textual Medium https://www.mozilla.org/en-US/security/advisories/mfsa2019-08/#CVE-2019-9791
generic_textual critical https://www.mozilla.org/en-US/security/advisories/mfsa2019-11
generic_textual Medium https://www.mozilla.org/en-US/security/advisories/mfsa2019-11/#CVE-2019-9791
Reference id Reference type URL
http://people.canonical.com/~ubuntu-security/cve/2019/CVE-2019-9791.html
https://access.redhat.com/errata/RHSA-2019:0966
https://access.redhat.com/errata/RHSA-2019:1144
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2019-9791.json
https://api.first.org/data/v1/epss?cve=CVE-2019-9791
https://bugzilla.mozilla.org/show_bug.cgi?id=1530958
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-18506
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9788
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9790
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9791
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9792
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9793
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9795
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9796
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://ubuntu.com/security/notices/USN-3918-1
https://ubuntu.com/security/notices/USN-3918-2
https://ubuntu.com/security/notices/USN-3927-1
https://usn.ubuntu.com/usn/usn-3918-1
https://usn.ubuntu.com/usn/usn-3918-2
https://usn.ubuntu.com/usn/usn-3927-1
https://www.mozilla.org/en-US/security/advisories/mfsa2019-07/#CVE-2019-9791
https://www.mozilla.org/en-US/security/advisories/mfsa2019-08/#CVE-2019-9791
https://www.mozilla.org/en-US/security/advisories/mfsa2019-11/#CVE-2019-9791
https://www.mozilla.org/security/advisories/mfsa2019-07/
https://www.mozilla.org/security/advisories/mfsa2019-08/
https://www.mozilla.org/security/advisories/mfsa2019-11/
1690676 https://bugzilla.redhat.com/show_bug.cgi?id=1690676
ASA-201903-11 https://security.archlinux.org/ASA-201903-11
AVG-925 https://security.archlinux.org/AVG-925
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:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_eus:8.1:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:enterprise_linux_eus:8.1:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_eus:8.2:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:enterprise_linux_eus:8.2:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_eus:8.4:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:enterprise_linux_eus:8.4:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_aus:8.2:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:enterprise_linux_server_aus:8.2:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_aus:8.4:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:enterprise_linux_server_aus:8.4:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_tus:8.2:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:enterprise_linux_server_tus:8.2:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_tus:8.4:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:enterprise_linux_server_tus:8.4:*:*:*:*:*:*:*
CVE-2019-9791 Exploit https://bugs.chromium.org/p/project-zero/issues/detail?id=1791
CVE-2019-9791 Exploit https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/multiple/dos/46613.js
CVE-2019-9791 https://nvd.nist.gov/vuln/detail/CVE-2019-9791
mfsa2019-07 https://www.mozilla.org/en-US/security/advisories/mfsa2019-07
mfsa2019-08 https://www.mozilla.org/en-US/security/advisories/mfsa2019-08
mfsa2019-11 https://www.mozilla.org/en-US/security/advisories/mfsa2019-11
USN-3918-1 https://usn.ubuntu.com/3918-1/
USN-3918-2 https://usn.ubuntu.com/3918-2/
Data source Exploit-DB
Date added March 26, 2019
Description Spidermonkey - IonMonkey Type Inference is Incorrect for Constructors Entered via OSR
Ransomware campaign use Known
Source publication date March 26, 2019
Exploit type dos
Platform multiple
Source update date March 26, 2019
Source URL https://bugs.chromium.org/p/project-zero/issues/detail?id=1791
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2019-9791.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:H/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:L/Au:N/C:P/I:P/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2019-9791
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:N/S:U/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2019-9791
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:N/S:U/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2019-9791
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 0.96328
EPSS Score 0.19997
Published At Dec. 17, 2024, midnight
Date Actor Action Source VulnerableCode Version
There are no relevant records.