[Pkg-auth-maintainers] Bug#896491: yubico-pam: CVE-2018-9275: Authfile Leaking File Descriptor

[Salvatore Bonaccorso]

Source: yubico-pam
Version: 2.18-1
Severity: important
Tags: patch security upstream
Forwarded: https://github.com/Yubico/yubico-pam/issues/136

Hi,

The following vulnerability was published for yubico-pam.

CVE-2018-9275[0]:
| In check_user_token in util.c in the Yubico PAM module (aka pam_yubico)
| 2.18 through 2.25, successful logins can leak file descriptors to the
| auth mapping file, which can lead to information disclosure (serial
| number of a device) and/or DoS (reaching the maximum number of file
| descriptors).

If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2018-9275
    https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-9275
[1] https://github.com/Yubico/yubico-pam/issues/136
[2] https://github.com/Yubico/yubico-pam/commit/0f6ceabab0a8849b47f67d727aa526c2656089ba

Regards,
Salvatore