After accepting an untrusted certificate, handling an empty pkcs7 sequence as part of the certificate data could have lead to a crash. This crash is believed to be unexploitable. This vulnerability affects Firefox ESR < 91.5, Firefox < 96, and Thunderbird < 91.5.
Weakness
The product does not validate, or incorrectly validates, a certificate.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Firefox | Mozilla | * | 96.0 (excluding) |
| Firefox_esr | Mozilla | * | 91.5 (excluding) |
| Thunderbird | Mozilla | * | 91.5 (excluding) |
| Red Hat Enterprise Linux 7 | RedHat | firefox-0:91.5.0-1.el7_9 | * |
| Red Hat Enterprise Linux 7 | RedHat | thunderbird-0:91.5.0-1.el7_9 | * |
| Red Hat Enterprise Linux 8 | RedHat | thunderbird-0:91.5.0-1.el8_5 | * |
| Red Hat Enterprise Linux 8 | RedHat | firefox-0:91.5.0-1.el8_5 | * |
| Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions | RedHat | firefox-0:91.5.0-1.el8_1 | * |
| Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions | RedHat | thunderbird-0:91.5.0-1.el8_1 | * |
| Red Hat Enterprise Linux 8.2 Extended Update Support | RedHat | thunderbird-0:91.5.0-1.el8_2 | * |
| Red Hat Enterprise Linux 8.2 Extended Update Support | RedHat | firefox-0:91.5.0-1.el8_2 | * |
| Red Hat Enterprise Linux 8.4 Extended Update Support | RedHat | firefox-0:91.5.0-1.el8_4 | * |
| Red Hat Enterprise Linux 8.4 Extended Update Support | RedHat | thunderbird-0:91.5.0-1.el8_4 | * |
| Firefox | Ubuntu | bionic | * |
| Firefox | Ubuntu | devel | * |
| Firefox | Ubuntu | focal | * |
| Firefox | Ubuntu | hirsute | * |
| Firefox | Ubuntu | impish | * |
| Firefox | Ubuntu | jammy | * |
| Firefox | Ubuntu | kinetic | * |
| Firefox | Ubuntu | lunar | * |
| Firefox | Ubuntu | mantic | * |
| Firefox | Ubuntu | noble | * |
| Firefox | Ubuntu | upstream | * |
| Mozjs38 | Ubuntu | bionic | * |
| Mozjs38 | Ubuntu | esm-apps/bionic | * |
| Mozjs38 | Ubuntu | upstream | * |
| Mozjs52 | Ubuntu | bionic | * |
| Mozjs52 | Ubuntu | esm-apps/focal | * |
| Mozjs52 | Ubuntu | esm-infra/bionic | * |
| Mozjs52 | Ubuntu | focal | * |
| Mozjs52 | Ubuntu | upstream | * |
| Mozjs68 | Ubuntu | esm-infra/focal | * |
| Mozjs68 | Ubuntu | focal | * |
| Mozjs68 | Ubuntu | upstream | * |
| Mozjs78 | Ubuntu | esm-apps/jammy | * |
| Mozjs78 | Ubuntu | hirsute | * |
| Mozjs78 | Ubuntu | impish | * |
| Mozjs78 | Ubuntu | jammy | * |
| Mozjs78 | Ubuntu | kinetic | * |
| Mozjs78 | Ubuntu | lunar | * |
| Mozjs78 | Ubuntu | upstream | * |
| Nss | Ubuntu | bionic | * |
| Nss | Ubuntu | esm-infra-legacy/trusty | * |
| Nss | Ubuntu | esm-infra/bionic | * |
| Nss | Ubuntu | esm-infra/focal | * |
| Nss | Ubuntu | esm-infra/xenial | * |
| Nss | Ubuntu | focal | * |
| Nss | Ubuntu | hirsute | * |
| Nss | Ubuntu | impish | * |
| Nss | Ubuntu | trusty/esm | * |
| Nss | Ubuntu | upstream | * |
| Thunderbird | Ubuntu | bionic | * |
| Thunderbird | Ubuntu | devel | * |
| Thunderbird | Ubuntu | focal | * |
| Thunderbird | Ubuntu | hirsute | * |
| Thunderbird | Ubuntu | impish | * |
| Thunderbird | Ubuntu | jammy | * |
| Thunderbird | Ubuntu | kinetic | * |
| Thunderbird | Ubuntu | lunar | * |
| Thunderbird | Ubuntu | mantic | * |
| Thunderbird | Ubuntu | noble | * |
| Thunderbird | Ubuntu | trusty | * |
| Thunderbird | Ubuntu | upstream | * |
| Thunderbird | Ubuntu | xenial | * |
Potential Mitigations
Related Attack Patterns
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1735028
- https://www.mozilla.org/security/advisories/mfsa2022-01/
- https://www.mozilla.org/security/advisories/mfsa2022-02/
- https://www.mozilla.org/security/advisories/mfsa2022-03/
- https://bugzilla.mozilla.org/show_bug.cgi?id=1735028
- https://www.mozilla.org/security/advisories/mfsa2022-01/
- https://www.mozilla.org/security/advisories/mfsa2022-02/
- https://www.mozilla.org/security/advisories/mfsa2022-03/