Vulnerability · Published Sep 15, 2020 · Assigned by redhat
CVE-2020-10759
Medium 6.0
In plain English
A medium-severity security flaw in fwupd. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 42% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code. Fixed versions are available - upgrade the affected package.
Official description
A PGP signature bypass flaw was found in fwupd (all versions), which could lead to the installation of unsigned firmware. As per upstream, a signature bypass is theoretically possible, but not practical because the Linux Vendor Firmware Service (LVFS) is either not implemented or enabled in versions of fwupd shipped with Red Hat Enterprise Linux 7 and 8. The highest threat from this vulnerability is to confidentiality and integrity.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:8 | appstream-data | 8-20200724.el8 | ALSA-2020:4436 |
| AlmaLinux:8 | libxmlb | 0.1.15-1.el8 | ALSA-2020:4436 |
| Debian:12 | fwupd | 1.3.10-1 | DEBIAN-CVE-2020-10759 |
| Debian:13 | fwupd | 1.3.10-1 | DEBIAN-CVE-2020-10759 |
| Debian:14 | fwupd | 1.3.10-1 | DEBIAN-CVE-2020-10759 |
| Debian:12 | libjcat | 0.1.3-1 | DEBIAN-CVE-2020-10759 |
| Debian:13 | libjcat | 0.1.3-1 | DEBIAN-CVE-2020-10759 |
| Debian:14 | libjcat | 0.1.3-1 | DEBIAN-CVE-2020-10759 |
| Rocky Linux:8 | appstream-data | 0:8-20200724.el8 | RLSA-2020:4436 |
| Rocky Linux:8 | libxmlb | 0:0.1.15-1.el8 | RLSA-2020:4436 |
Affected products (as reported)
Weakness: CWE-347