title: pppd arbitrary file read information disclosure vulnerability
description: 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.
problem types: CWE-200 Information Exposure
affected:
{
product: ppp
vendor: Canonical
versions:
changes: [at: 2.4.5-5.1ubuntu2.3+esm2, status: unaffected], lessThan: 2.4.5-5ubuntu1.4, status: affected, version: 2.4.5, versionType: custom
changes: [at: 2.4.7-2+2ubuntu1.3, status: unaffected], lessThan: 2.4.7-1+2ubuntu1.16.04.3, status: affected, version: 2.4.7, versionType: custom
}
metrics:
cvssV3_1: [
attackComplexity: LOW
attackVector: LOCAL
availabilityImpact: NONE
baseScore: 5.5
baseSeverity: MEDIUM
confidentialityImpact: HIGH
integrityImpact: NONE
privilegesRequired: LOW
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
version: 3.1
]