CVE-2020-15704

pppd arbitrary file read information disclosure vulnerability

State: Published
Severity: 5.5 Medium
Published: Aug 31, 2020
Updated: Sep 17, 2024
Reserved: Jul 14, 2020

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.

Scores

CVSS	Score	Vector	Source
3.1	5.5 Medium	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N	canonical

Weaknesses

CWE-200 Information Exposure

Affected Products

Product	Versions
pppCanonical	2.4.5 to before 2.4.5-5ubuntu1.4Affectedfrom 2.4.5-5.1ubuntu2.3+esm2Not affected 2.4.7 to before 2.4.7-1+2ubuntu1.16.04.3Affectedfrom 2.4.7-2+2ubuntu1.3Not affectedfrom 2.4.7-2+4.1ubuntu5.1Not affectedfrom 2.4.7-2+4.1ubuntu6Not affected

References

https://ubuntu.com/security/notices/USN-4451-1vendor-advisory
https://ubuntu.com/security/notices/USN-4451-2vendor-advisory

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.