Ubuntu.comUB:CVE-2021-4140CVE-2021-4140
10 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
7.5 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
0.001 Low
EPSS
Percentile
47.6%
It was possible to construct specific XSLT markup that would be able to
bypass an iframe sandbox. This vulnerability affects Firefox ESR < 91.5,
Firefox < 96, and Thunderbird < 91.5.
Notes
| Author | Note |
|---|---|
| tyhicks | mozjs contains a copy of the SpiderMonkey JavaScript engine |
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| ubuntu | 18.04 | noarch | firefox | < 96.0+build2-0ubuntu0.18.04.1 | UNKNOWN |
| ubuntu | 20.04 | noarch | firefox | < 96.0+build2-0ubuntu0.20.04.1 | UNKNOWN |
| ubuntu | 21.04 | noarch | firefox | < 96.0+build2-0ubuntu0.21.04.1 | UNKNOWN |
| ubuntu | 21.10 | noarch | firefox | < 96.0+build2-0ubuntu0.21.10.1 | UNKNOWN |
| ubuntu | 22.04 | noarch | firefox | < 96.0+build2-0ubuntu1 | UNKNOWN |
| ubuntu | 22.10 | noarch | firefox | < 96.0+build2-0ubuntu1 | UNKNOWN |
| ubuntu | 23.04 | noarch | firefox | < 96.0+build2-0ubuntu1 | UNKNOWN |
| ubuntu | 23.10 | noarch | firefox | < 96.0+build2-0ubuntu1 | UNKNOWN |
| ubuntu | 18.04 | noarch | mozjs38 | < any | UNKNOWN |
| ubuntu | 18.04 | noarch | mozjs52 | < any | UNKNOWN |
References
launchpad.net/bugs/cve/CVE-2021-4140
nvd.nist.gov/vuln/detail/CVE-2021-4140
security-tracker.debian.org/tracker/CVE-2021-4140
ubuntu.com/security/notices/USN-5229-1
ubuntu.com/security/notices/USN-5246-1
ubuntu.com/security/notices/USN-5248-1
www.cve.org/CVERecord?id=CVE-2021-4140
www.mozilla.org/en-US/security/advisories/mfsa2022-01/#CVE-2021-4140
www.mozilla.org/en-US/security/advisories/mfsa2022-02/#CVE-2021-4140
www.mozilla.org/en-US/security/advisories/mfsa2022-03/#CVE-2021-4140
Related
10 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
7.5 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
0.001 Low
EPSS
Percentile
47.6%