VDB
ALPINE-CVE-2021-43527
ALPINE-CVE-2021-43527
PUBLISHED
CVSS 9.800000190734863 CRITICAL
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.
Risk Scores
CVSS 3.1
9.800000190734863
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Alpine:v3.23 | nss | 3.15.2-r0, 3.15.3-r0, 0 |
| Alpine:v3.24 | nss | 0 |
| Alpine:v3.21 | nss | 3.16.3-r0, 0, 3.72-r0 |
| Alpine:v3.22 | nss | 0, 3.16.1-r0, 3.12.8-r6 |
| Alpine:v3.19 | nss | 0, 3.13.5-r0, 0 |
| Alpine:v3.12 | nss | 3.15.3.1-r0, 3.15.3-r0, 3.15.2-r0 |
| Alpine:v3.20 | nss | 3.17.4-r0, 3.17.3-r0, 3.17.2-r0 |
Timeline
- Dec 8, 2021 CVE Published
- Apr 30, 2026 Distribution Patch
- Jun 15, 2026 CVE Updated