CVE Vulnerability

CVE-2019-12210

In Yubico pam-u2f 1.0.7, when configured with debug and a custom debug log file is set using debug_file, that file descriptor is not closed when a new process is spawned. This leads to the file descriptor being inherited into the child process; the child process can then read from and write to it. This can leak sensitive information and also, if written to, be used to fill the disk or plant misinformation.

5.5 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8 / Impact : 4.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact NONE

Scope

8.1 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://github.com/Yubico/pam-u2f/commit/18b1914e32b74ff52000f10e97067e841e5fff62 Patch Third Party Advisory
https://developers.yubico.com/pam-u2f/Release_Notes.html Release Notes Vendor Advisory
http://www.openwall.com/lists/oss-security/2019/06/05/1 Mailing List Exploit
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00012.html
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00018.html
Configurations

Configuration 1

cpe:2.3:a:yubico:pam-u2f:1.0.7:*:*:*:*:*:*:*
Information

Published : 2019-06-04 09:29

Updated : 2020-08-24 05:37

NVD link : CVE-2019-12210

Mitre link : CVE-2019-12210

Products Affected
No products.
CWE
NVD-CWE-noinfo