CVE-2021-43527
CVSS V2 High 7.5
CVSS V3 Critical 9.8
Description
NSS (Network Security Services) versions prior to 3.73 or 3.68.1 ESR are vulnerable to a heap overflow when handling DER-encoded DSA or RSA-PSS signatures. Applications using NSS for handling signatures encoded within CMS, S/MIME, PKCS \#7, or PKCS \#12 are likely to be impacted. Applications using NSS for certificate validation or other TLS, X.509, OCSP or CRL functionality may be impacted, depending on how they configure NSS. *Note: This vulnerability does NOT impact Mozilla Firefox.* However, email clients and PDF viewers that use NSS for signature verification, such as Thunderbird, LibreOffice, Evolution and Evince are believed to be impacted. This vulnerability affects NSS < 3.73 and NSS < 3.68.1.
Overview
- CVE ID
- CVE-2021-43527
- Assigner
- security@mozilla.org
- Vulnerability Status
- Analyzed
- Published Version
- 2021-12-08T22:15:09
- Last Modified Date
- 2023-02-23T01:40:31
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:mozilla:nss:*:*:*:*:*:*:*:* | 1 | OR | 3.73 | |
| cpe:2.3:a:mozilla:nss_esr:*:*:*:*:*:*:*:* | 1 | OR | 3.68.1 | |
| cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:netapp:e-series_santricity_os_controller:*:*:*:*:*:*:*:* | 1 | OR | 11.0 | 11.70.1 |
| cpe:2.3:a:oracle:communications_cloud_native_core_binding_support_function:1.11.0:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:oracle:communications_cloud_native_core_network_repository_function:1.15.0:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:oracle:communications_cloud_native_core_network_repository_function:1.15.1:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:oracle:communications_cloud_native_core_network_slice_selection_function:1.8.0:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:oracle:communications_policy_management:12.6.0.0.0:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:starwindsoftware:starwind_san_\&_nas:v8r13:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:starwindsoftware:starwind_virtual_san:v8r13:14398:*:*:*:*:*:* | 1 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:N/C:P/I:P/A:P
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- PARTIAL
- Availability Impact
- PARTIAL
- Base Score
- 7.5
- Severity
- HIGH
- Exploitability Score
- 10
- Impact Score
- 6.4
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- HIGH
- Base Score
- 9.8
- Base Severity
- CRITICAL
- Exploitability Score
- 3.9
- Impact Score
- 5.9
References
| Reference URL | Reference Tags |
|---|---|
| https://bugzilla.mozilla.org/show_bug.cgi?id=1737470 | Issue Tracking Permissions Required Vendor Advisory |
| https://cert-portal.siemens.com/productcert/pdf/ssa-594438.pdf | Third Party Advisory |
| https://ftp.mozilla.org/pub/security/nss/releases/NSS_3_68_1_RTM/ | Vendor Advisory |
| https://ftp.mozilla.org/pub/security/nss/releases/NSS_3_73_RTM/ | Vendor Advisory |
| https://security.gentoo.org/glsa/202212-05 | |
| https://security.netapp.com/advisory/ntap-20211229-0002/ | Third Party Advisory |
| https://www.mozilla.org/security/advisories/mfsa2021-51/ | Vendor Advisory |
| https://www.oracle.com/security-alerts/cpuapr2022.html | Patch Third Party Advisory |
| https://www.starwindsoftware.com/security/sw-20220802-0001/ | Third Party Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2021-43527 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-43527 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-04-04 00:40:52 | Added to TrackCVE | |||
| 2022-12-06 03:25:10 | 2021-12-08T22:15Z | 2021-12-08T22:15:09 | CVE Published Date | updated |
| 2022-12-06 03:25:10 | 2022-10-25T16:22:43 | CVE Modified Date | updated | |
| 2022-12-06 03:25:10 | Analyzed | Vulnerability Status | updated | |
| 2022-12-06 03:25:15 | References | updated | ||
| 2022-12-19 04:25:32 | 2022-12-19T04:15:11 | CVE Modified Date | updated | |
| 2022-12-19 04:25:32 | Analyzed | Modified | Vulnerability Status | updated |
| 2022-12-19 04:25:33 | References | updated | ||
| 2022-12-19 18:14:04 | Modified | Undergoing Analysis | Vulnerability Status | updated |
| 2023-02-23 02:12:48 | 2023-02-23T01:40:31 | CVE Modified Date | updated | |
| 2023-02-23 02:12:48 | Undergoing Analysis | Analyzed | Vulnerability Status | updated |