Home/CVE/The modprobe child process in the ./debian/patches/load_ppp_generic_if_needed patch file incorrectly handled module load
CVE

CVE-2020-15704

The modprobe child process in the ./debian/patches/load_ppp_generic_if_needed patch file incorrectly handled module load

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.

MEDIUM · CVSS 5.5 EPSS 0.00105
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-20Improper Input Validation
CWE-200Exposure of Sensitive Information to an Unauthorized Actor
▤

Affected Products & Versions

5
canonical ppp< 2.4.7-1\+ubuntu1.16.04.3
canonical ppp< 2.4.7-2\+2ubuntu1.3
canonical ppp< 2.4.7-2\+4.1ubuntu5.1
canonical ppp< 2.4.5-5ubuntu1.4
canonical ppp< 2.4.5-5.1ubuntu2.3\+esm2
▣

Scoring & Timeline

5.5
MEDIUM · CVSS v3.1 · security@ubuntu.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD01 Sep 2020 · 12:15 AM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
⚑

Vendor Advisories

2
usnUSN-4451-2
usnUSN-4451-1
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