CVE-2021-43543
CVSS V2 Medium 4.3
CVSS V3 Medium 6.1
Description
Documents loaded with the CSP sandbox directive could have escaped the sandbox's script restriction by embedding additional content. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox < 95.
Overview
- CVE ID
- CVE-2021-43543
- Assigner
- security@mozilla.org
- Vulnerability Status
- Analyzed
- Published Version
- 2021-12-08T22:15:09
- Last Modified Date
- 2022-12-09T15:08:22
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* | 1 | OR | 95.0 | |
| cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:* | 1 | OR | 91.4.0 | |
| cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* | 1 | OR | 91.4.0 | |
| cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* | 1 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:M/Au:N/C:N/I:P/A:N
- Access Vector
- NETWORK
- Access Compatibility
- MEDIUM
- Authentication
- NONE
- Confidentiality Impact
- NONE
- Integrity Impact
- PARTIAL
- Availability Impact
- NONE
- Base Score
- 4.3
- Severity
- MEDIUM
- Exploitability Score
- 8.6
- Impact Score
- 2.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- REQUIRED
- Scope
- CHANGED
- Confidentiality Impact
- LOW
- Availability Impact
- NONE
- Base Score
- 6.1
- Base Severity
- MEDIUM
- Exploitability Score
- 2.8
- Impact Score
- 2.7
References
| Reference URL | Reference Tags |
|---|---|
| https://bugzilla.mozilla.org/show_bug.cgi?id=1738418 | Issue Tracking Permissions Required Vendor Advisory |
| https://lists.debian.org/debian-lts-announce/2021/12/msg00030.html | Mailing List Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2022/01/msg00001.html | Mailing List Third Party Advisory |
| https://security.gentoo.org/glsa/202202-03 | Third Party Advisory |
| https://security.gentoo.org/glsa/202208-14 | |
| https://www.debian.org/security/2021/dsa-5026 | Third Party Advisory |
| https://www.debian.org/security/2022/dsa-5034 | Third Party Advisory |
| https://www.mozilla.org/security/advisories/mfsa2021-52/ | Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2021-53/ | Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2021-54/ | Vendor Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2021-43543 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-43543 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 15:45:40 | Added to TrackCVE | |||
| 2022-12-06 03:26:25 | 2021-12-08T22:15Z | 2021-12-08T22:15:09 | CVE Published Date | updated |
| 2022-12-06 03:26:25 | 2022-08-10T20:15:23 | CVE Modified Date | updated | |
| 2022-12-06 03:26:25 | Undergoing Analysis | Vulnerability Status | updated | |
| 2022-12-06 03:26:30 | References | updated | ||
| 2022-12-09 15:12:17 | 2022-12-09T15:08:22 | CVE Modified Date | updated | |
| 2022-12-09 15:12:17 | Undergoing Analysis | Analyzed | Vulnerability Status | updated |