9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
10 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:C/I:C/A:C
0.007 Low
EPSS
Percentile
79.5%
Mozilla developers and community members reported memory safety bugs
present in Firefox 75 and Firefox ESR 68.7. 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 ESR < 68.8, Firefox < 76, and Thunderbird <
68.8.0.
Author | Note |
---|---|
tyhicks | mozjs contains a copy of the SpiderMonkey JavaScript engine |
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
ubuntu | 18.04 | noarch | firefox | < 76.0+build2-0ubuntu0.18.04.1 | UNKNOWN |
ubuntu | 19.10 | noarch | firefox | < 76.0+build2-0ubuntu0.19.10.1 | UNKNOWN |
ubuntu | 20.04 | noarch | firefox | < 76.0+build2-0ubuntu0.20.04.1 | UNKNOWN |
ubuntu | 20.10 | noarch | firefox | < 76.0+build2-0ubuntu1 | UNKNOWN |
ubuntu | 21.04 | noarch | firefox | < 76.0+build2-0ubuntu1 | UNKNOWN |
ubuntu | 21.10 | noarch | firefox | < 76.0+build2-0ubuntu1 | UNKNOWN |
ubuntu | 22.04 | noarch | firefox | < 76.0+build2-0ubuntu1 | UNKNOWN |
ubuntu | 22.10 | noarch | firefox | < 76.0+build2-0ubuntu1 | UNKNOWN |
ubuntu | 23.04 | noarch | firefox | < 76.0+build2-0ubuntu1 | UNKNOWN |
ubuntu | 23.10 | noarch | firefox | < 76.0+build2-0ubuntu1 | UNKNOWN |
launchpad.net/bugs/cve/CVE-2020-12395
nvd.nist.gov/vuln/detail/CVE-2020-12395
security-tracker.debian.org/tracker/CVE-2020-12395
ubuntu.com/security/notices/USN-4353-1
ubuntu.com/security/notices/USN-4373-1
www.cve.org/CVERecord?id=CVE-2020-12395
www.mozilla.org/en-US/security/advisories/mfsa2020-16/#CVE-2020-12395
www.mozilla.org/en-US/security/advisories/mfsa2020-17/#CVE-2020-12395
www.mozilla.org/en-US/security/advisories/mfsa2020-18/#CVE-2020-12395
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
10 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:C/I:C/A:C
0.007 Low
EPSS
Percentile
79.5%