CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS
Percentile
59.7%
Performing garbage collection on re-declared JavaScript variables resulted
in a user-after-poison, and a potentially exploitable crash. This
vulnerability affects Firefox < 85, Thunderbird < 78.7, and Firefox ESR <
78.7.
Author | Note |
---|---|
tyhicks | mozjs contains a copy of the SpiderMonkey JavaScript engine |
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
ubuntu | 18.04 | noarch | firefox | < 85.0+build1-0ubuntu0.18.04.1 | UNKNOWN |
ubuntu | 20.04 | noarch | firefox | < 85.0+build1-0ubuntu0.20.04.1 | UNKNOWN |
ubuntu | 20.10 | noarch | firefox | < 85.0+build1-0ubuntu0.20.10.1 | UNKNOWN |
ubuntu | 21.04 | noarch | firefox | < 85.0+build1-0ubuntu1 | UNKNOWN |
ubuntu | 21.10 | noarch | firefox | < 85.0+build1-0ubuntu1 | UNKNOWN |
ubuntu | 22.04 | noarch | firefox | < 85.0+build1-0ubuntu1 | UNKNOWN |
ubuntu | 22.10 | noarch | firefox | < 85.0+build1-0ubuntu1 | UNKNOWN |
ubuntu | 23.04 | noarch | firefox | < 85.0+build1-0ubuntu1 | UNKNOWN |
ubuntu | 23.10 | noarch | firefox | < 85.0+build1-0ubuntu1 | UNKNOWN |
ubuntu | 24.04 | noarch | firefox | < 85.0+build1-0ubuntu1 | UNKNOWN |
launchpad.net/bugs/cve/CVE-2021-23960
nvd.nist.gov/vuln/detail/CVE-2021-23960
security-tracker.debian.org/tracker/CVE-2021-23960
ubuntu.com/security/notices/USN-4717-1
ubuntu.com/security/notices/USN-4736-1
www.cve.org/CVERecord?id=CVE-2021-23960
www.mozilla.org/en-US/security/advisories/mfsa2021-03/#CVE-2021-23960
www.mozilla.org/en-US/security/advisories/mfsa2021-04/#CVE-2021-23960
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS
Percentile
59.7%