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.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade nss-softokn-develUpgrade nssUpgrade nss-toolsUpgrade nss-develUpgrade nss-utilUpgrade nss-softoknUpgrade nss-sysinitUpgrade nss-softokn-freeblUpgrade nss-softokn-freebl-develUpgrade nss-util-devel | May 4, 2022 | Dec 8, 2021 |
| Alpine Linux | — | Upgrade nss | Mar 26, 2024 | Dec 8, 2021 |
| Amazon Linux Ami 2 | — | Upgrade nss-softokn-debuginfoUpgrade nspr-develUpgrade nss-pkcs11-develUpgrade nss-utilUpgrade nsprUpgrade nss-softokn-freebl-develUpgrade nss-softokn-freeblUpgrade nss-toolsUpgrade nss-develUpgrade nss-debuginfoUpgrade nssUpgrade nspr-debuginfoUpgrade nss-softoknUpgrade nss-util-develUpgrade nss-sysinitUpgrade nss-util-debuginfoUpgrade nss-softokn-devel | Dec 2, 2021 | Dec 2, 2021 |
| Amazon_linux | — | Upgrade nss | Dec 2, 2021 | Dec 1, 2021 |
| Amazon_linux_2023 | — | Upgrade nssUpgrade nss-sysinitUpgrade nss-tools-debuginfoUpgrade nss-debuginfoUpgrade nss-softokn-debuginfoUpgrade nss-util-debuginfoUpgrade nss-sysinit-debuginfoUpgrade nss-toolsUpgrade nss-softokn-freeblUpgrade nss-softokn-freebl-develUpgrade nss-softokn-develUpgrade nsprUpgrade nss-util-develUpgrade nspr-debuginfoUpgrade nss-utilUpgrade nss-develUpgrade nss-softokn-freebl-debuginfoUpgrade nss-pkcs11-develUpgrade nspr-develUpgrade nss-debugsourceUpgrade nss-softokn | Feb 17, 2025 | Dec 1, 2021 |
| Arch Linux | — | Upgrade to the latest version of Arch Linux | Jul 11, 2025 | Dec 8, 2021 |
| Centos_linux | — | Upgrade nss-util-develUpgrade nss-sysinit-debuginfoUpgrade nss-tools-debuginfoUpgrade nss-softoknUpgrade nss-softokn-freebl-develUpgrade nss-debugsourceUpgrade nss-util-debuginfoUpgrade nss-toolsUpgrade nss-softokn-freebl-debuginfoUpgrade nss-debuginfoUpgrade nss-softokn-debuginfoUpgrade nss-softokn-freeblUpgrade nss-pkcs11-develUpgrade nss-utilUpgrade nss-develUpgrade nss-softokn-develUpgrade nss-sysinitUpgrade nss | Dec 2, 2021 | Dec 1, 2021 |
| Debian | — | Upgrade nss | Dec 3, 2021 | Dec 3, 2021 |
| Freebsd | — | Upgrade nss | Nov 4, 2022 | Dec 2, 2021 |
| Gentoo Linux | — | Upgrade dev-libs/nss. | Dec 19, 2022 | Dec 8, 2021 |
| Huawei Euleros 2_0_sp10 | — | Upgrade nss-utilUpgrade nss-softoknUpgrade nss | Apr 20, 2022 | Dec 8, 2021 |
| Huawei Euleros 2_0_sp5 | — | Upgrade nss-develUpgrade nssUpgrade nss-toolsUpgrade nss-sysinit | Mar 2, 2022 | Dec 8, 2021 |
| Huawei Euleros 2_0_sp9 | — | Upgrade nssUpgrade nss-softoknUpgrade nss-util | Mar 3, 2022 | Dec 8, 2021 |
| Nutanix Ahv | — | Upgrade Nutanix AHV to the latest version | Jun 5, 2026 | Sep 19, 2022 |
| Oracle Solaris | — | Upgrade library/security/nss to version 4.70-11.4.42.0.1.113.0 on Solaris 11.4 | Feb 17, 2022 | Dec 8, 2021 |
| Oracle_linux | — | Upgrade nss-pkcs11-develUpgrade nss-develUpgrade nss-softoknUpgrade nss-softokn-freeblUpgrade nss-toolsUpgrade nss-softokn-develUpgrade nss-util-develUpgrade nss-utilUpgrade nss-sysinitUpgrade nss-softokn-freebl-develUpgrade nss | Dec 2, 2021 | Dec 1, 2021 |
| Redhat_linux | — | Upgrade nss-toolsUpgrade nss-debuginfoUpgrade nss-sysinitUpgrade nss-utilUpgrade nss-softoknUpgrade nss-util-develUpgrade thunderbirdUpgrade nss-pkcs11-develUpgrade nss-softokn-develUpgrade nss-softokn-freeblUpgrade nss-softokn-debuginfoUpgrade nssUpgrade nss-debugsourceUpgrade nss-tools-debuginfoUpgrade nss-softokn-freebl-debuginfoUpgrade thunderbird-debugsourceUpgrade thunderbird-debuginfoUpgrade nss-util-debuginfoUpgrade nss-sysinit-debuginfoUpgrade nss-softokn-freebl-develUpgrade nss-devel | Dec 2, 2021 | Dec 1, 2021 |
| Rocky_linux | — | Upgrade nss-util-debuginfoUpgrade nss-sysinit-debuginfoUpgrade nss-softokn-freebl-debuginfoUpgrade nss-tools-debuginfoUpgrade nss-debugsourceUpgrade nss-develUpgrade nss-softokn-freebl-develUpgrade nss-softokn-debuginfoUpgrade nssUpgrade nss-sysinitUpgrade nss-softokn-develUpgrade nss-softoknUpgrade nss-debuginfoUpgrade nss-softokn-freeblUpgrade nss-util-develUpgrade nss-toolsUpgrade nss-util | May 5, 2022 | Dec 8, 2021 |
| Suse | — | Upgrade mozilla-nss-toolsUpgrade mozilla-nsprUpgrade libsoftokn3-32bitUpgrade mozilla-nspr-32bitUpgrade mozilla-nss-sysinitUpgrade mozilla-nspr-develUpgrade libfreebl3-32bitUpgrade mozilla-nss-sysinit-32bitUpgrade mozilla-nss-certs-32bitUpgrade mozilla-nss-certsUpgrade libsoftokn3-hmacUpgrade libsoftokn3-hmac-32bitUpgrade mozilla-nss-32bitUpgrade libsoftokn3Upgrade mozilla-nss-develUpgrade mozilla-nssUpgrade libfreebl3-hmac-32bitUpgrade libfreebl3-hmacUpgrade libfreebl3 | Dec 7, 2021 | Dec 1, 2021 |
| Ubuntu | — | Upgrade libnss3Upgrade thunderbirdUpgrade libnss3 (Ubuntu Pro) | Dec 2, 2021 | Dec 1, 2021 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jan 20, 2025 | Dec 8, 2021 |
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