Описание
When flex-basis was used on a table wrapper, a StyleGenericFlexBasis object could have been incorrectly cast to the wrong type. This resulted in a heap user-after-free, memory corruption, and a potentially exploitable crash. This vulnerability affects Firefox < 84, Thunderbird < 78.6, and Firefox ESR < 78.6.
The Mozilla Foundation Security Advisory describes this flaw as:
When flex-basis was used on a table wrapper, a StyleGenericFlexBasis object could have been incorrectly cast to the wrong type. This resulted in a heap user-after-free, memory corruption, and a potentially exploitable crash.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Enterprise Linux 5 | thunderbird | Out of support scope | ||
| Red Hat Enterprise Linux 6 | firefox | Out of support scope | ||
| Red Hat Enterprise Linux 6 | thunderbird | Out of support scope | ||
| Red Hat Enterprise Linux 7 | firefox | Fixed | RHSA-2020:5561 | 16.12.2020 |
| Red Hat Enterprise Linux 7 | thunderbird | Fixed | RHSA-2020:5618 | 17.12.2020 |
| Red Hat Enterprise Linux 8 | firefox | Fixed | RHSA-2020:5562 | 16.12.2020 |
| Red Hat Enterprise Linux 8 | thunderbird | Fixed | RHSA-2020:5624 | 17.12.2020 |
| Red Hat Enterprise Linux 8.0 Update Services for SAP Solutions | firefox | Fixed | RHSA-2020:5565 | 16.12.2020 |
| Red Hat Enterprise Linux 8.0 Update Services for SAP Solutions | thunderbird | Fixed | RHSA-2020:5645 | 21.12.2020 |
| Red Hat Enterprise Linux 8.1 Extended Update Support | firefox | Fixed | RHSA-2020:5564 | 16.12.2020 |
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Дополнительная информация
Статус:
EPSS
8.8 High
CVSS3
Связанные уязвимости
When flex-basis was used on a table wrapper, a StyleGenericFlexBasis object could have been incorrectly cast to the wrong type. This resulted in a heap user-after-free, memory corruption, and a potentially exploitable crash. This vulnerability affects Firefox < 84, Thunderbird < 78.6, and Firefox ESR < 78.6.
When flex-basis was used on a table wrapper, a StyleGenericFlexBasis object could have been incorrectly cast to the wrong type. This resulted in a heap user-after-free, memory corruption, and a potentially exploitable crash. This vulnerability affects Firefox < 84, Thunderbird < 78.6, and Firefox ESR < 78.6.
When flex-basis was used on a table wrapper, a StyleGenericFlexBasis o ...
When flex-basis was used on a table wrapper, a StyleGenericFlexBasis object could have been incorrectly cast to the wrong type. This resulted in a heap user-after-free, memory corruption, and a potentially exploitable crash. This vulnerability affects Firefox < 84, Thunderbird < 78.6, and Firefox ESR < 78.6.
ELSA-2020-5624-1: thunderbird security update (IMPORTANT)
EPSS
8.8 High
CVSS3