medium5.5
CVE-2020-15704
The modprobe child process in the ./debian/patches/load_ppp_generic_if_needed patch file incorrectly handled module loading.
Impact
The modprobe child process in the ./debian/patches/load_ppp_generic_if_needed patch file incorrectly handled module loading. A local non-root attacker could exploit the MODPROBE_OPTIONS environment variable to read arbitrary root files. Fixed in 2.4.5-5ubuntu1.4, 2.4.5-5.1ubuntu2.3+esm2, 2.4.7-1+2ubuntu1.16.04.3, 2.4.7-2+2ubuntu1.3, 2.4.7-2+4.1ubuntu5.1, 2.4.7-2+4.1ubuntu6. Was ZDI-CAN-11504.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Canonical | Ppp | before 2.4.7-1\+ubuntu1.16.04.3 before 2.4.7-2\+2ubuntu1.3 before 2.4.7-2\+4.1ubuntu5.1 before 2.4.5-5ubuntu1.4 before 2.4.5-5.1ubuntu2.3\+esm2 |