Описание
A heap buffer overflow in SANE Backends before 1.0.30 may allow a malicious device connected to the same local network as the victim to execute arbitrary code, aka GHSL-2020-084.
A flaw was found in sane-backends in versions prior to 1.0.30. A heap buffer overflow in the esci2_img function could lead to a remote code execution. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
Отчет
The vulnerable code is a part of "driver for Epson ESC/I-2 scanners" which was first introduced in sane-backends-1.0.25 (via https://gitlab.com/sane-project/backends/-/commit/d72f4663c0ad6e6f779c15c8baf5f92b675ae19a). Therefore, only versions of sane-backends shipped with Red Hat Enterprise Linux 8 are affected by this flaw.
Меры по смягчению последствий
This flaw can be mitigated by limiting network scanner discovery to a trusted subnet via the "net" configuration in the "/etc/sane.d/epsonds.conf" configuration file. Also, automatic network scanner discovery can be turned off by commenting out the line "net autodiscovery" in the same configuration file.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Enterprise Linux 5 | sane-backends | Not affected | ||
| Red Hat Enterprise Linux 6 | sane-backends | Not affected | ||
| Red Hat Enterprise Linux 7 | sane-backends | Not affected | ||
| Red Hat Enterprise Linux 8 | sane-backends | Fixed | RHSA-2020:2902 | 14.07.2020 |
| Red Hat Enterprise Linux 8.0 Update Services for SAP Solutions | sane-backends | Fixed | RHSA-2020:3045 | 21.07.2020 |
| Red Hat Enterprise Linux 8.1 Extended Update Support | sane-backends | Fixed | RHSA-2020:2967 | 16.07.2020 |
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Дополнительная информация
Статус:
EPSS
8 High
CVSS3
Связанные уязвимости
A heap buffer overflow in SANE Backends before 1.0.30 may allow a malicious device connected to the same local network as the victim to execute arbitrary code, aka GHSL-2020-084.
A heap buffer overflow in SANE Backends before 1.0.30 may allow a malicious device connected to the same local network as the victim to execute arbitrary code, aka GHSL-2020-084.
A heap buffer overflow in SANE Backends before 1.0.30 may allow a mali ...
A heap buffer overflow in SANE Backends before 1.0.30 may allow a malicious device connected to the same local network as the victim to execute arbitrary code, aka GHSL-2020-084.
Уязвимость компонента epsonds пакета sane-backends, позволяющая нарушителю выполнить произвольный код или вызвать отказ в обслуживании
EPSS
8 High
CVSS3