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Vulnerability details: VCID-8hk7-ga1w-aaab
Vulnerability ID VCID-8hk7-ga1w-aaab
Aliases CVE-2020-12396
Summary Mozilla developers and community members reported memory safety bugs present in Firefox 75. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 76.
Status Published
Exploitability 0.5
Weighted Severity 9.0
Risk 4.5
Affected and Fixed Packages Package Details
Weaknesses (2)
CWE-787 Out-of-bounds Write
CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
System Score Found at
generic_textual Medium http://people.canonical.com/~ubuntu-security/cve/2020/CVE-2020-12396.html
cvssv3 9.8 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-12396.json
epss 0.00323 https://api.first.org/data/v1/epss?cve=CVE-2020-12396
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epss 0.00353 https://api.first.org/data/v1/epss?cve=CVE-2020-12396
epss 0.00353 https://api.first.org/data/v1/epss?cve=CVE-2020-12396
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epss 0.00576 https://api.first.org/data/v1/epss?cve=CVE-2020-12396
epss 0.01947 https://api.first.org/data/v1/epss?cve=CVE-2020-12396
rhbs high https://bugzilla.redhat.com/show_bug.cgi?id=1834689
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-12396
cvssv2 7.5 https://nvd.nist.gov/vuln/detail/CVE-2020-12396
cvssv3 9.8 https://nvd.nist.gov/vuln/detail/CVE-2020-12396
cvssv3.1 9.8 https://nvd.nist.gov/vuln/detail/CVE-2020-12396
archlinux Critical https://security.archlinux.org/AVG-1148
generic_textual Medium https://ubuntu.com/security/notices/USN-4353-1
generic_textual Medium https://usn.ubuntu.com/usn/usn-4353-1
generic_textual critical https://www.mozilla.org/en-US/security/advisories/mfsa2020-16
generic_textual Medium https://www.mozilla.org/en-US/security/advisories/mfsa2020-16/#CVE-2020-12396
Reference id Reference type URL
http://people.canonical.com/~ubuntu-security/cve/2020/CVE-2020-12396.html
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-12396.json
https://api.first.org/data/v1/epss?cve=CVE-2020-12396
https://bugzilla.mozilla.org/buglist.cgi?bug_id=1339601%2C1611938%2C1620488%2C1622291%2C1627644
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-12396
https://security.gentoo.org/glsa/202005-04
https://ubuntu.com/security/notices/USN-4353-1
https://usn.ubuntu.com/usn/usn-4353-1
https://www.mozilla.org/en-US/security/advisories/mfsa2020-16/#CVE-2020-12396
https://www.mozilla.org/security/advisories/mfsa2020-16/
1834689 https://bugzilla.redhat.com/show_bug.cgi?id=1834689
ASA-202005-3 https://security.archlinux.org/ASA-202005-3
AVG-1148 https://security.archlinux.org/AVG-1148
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:*:*:*:*:*:*:*:*
CVE-2020-12396 https://nvd.nist.gov/vuln/detail/CVE-2020-12396
mfsa2020-16 https://www.mozilla.org/en-US/security/advisories/mfsa2020-16
USN-4353-1 https://usn.ubuntu.com/4353-1/
No exploits are available.
Vector: CVSS:3.1/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-2020-12396.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:L/Au:N/C:P/I:P/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2020-12396
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-2020-12396
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-2020-12396
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 0.70330
EPSS Score 0.00323
Published At Dec. 17, 2024, midnight
Date Actor Action Source VulnerableCode Version
There are no relevant records.