CVE-2015-9542: Buffer Overflow
First published: Thu Dec 31 2015(Updated: )
A vulnerability was found in pam_radius : the password length check was done incorrectly in the add_password() function, resulting in a stack based buffer overflow. This could be used to crash (DoS) an application using the PAM stack for authentication.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/pam_radius | <2.0.0 | 2.0.0 |
| ubuntu/libpam-radius-auth | <1.3.17-0ubuntu5.18.04.1 | 1.3.17-0ubuntu5.18.04.1 |
| ubuntu/libpam-radius-auth | <1.3.17-0ubuntu5.19.10.1 | 1.3.17-0ubuntu5.19.10.1 |
| ubuntu/libpam-radius-auth | <1.3.17-0ubuntu4+ | 1.3.17-0ubuntu4+ |
| ubuntu/libpam-radius-auth | <1.3.17-0ubuntu4.1 | 1.3.17-0ubuntu4.1 |
| debian/libpam-radius-auth | 2.0.0-1 2.0.1-2 | |
| FreeRADIUS | =1.4.0 | |
| Debian Linux | =8.0 | |
| Debian Linux | =9.0 | |
| Ubuntu | =12.04 | |
| Ubuntu | =14.04 | |
| Ubuntu | =16.04 | |
| Ubuntu | =18.04 | |
| Ubuntu | =19.10 |
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Reference Links
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2015-9542
- https://github.com/FreeRADIUS/pam_radius/commit/01173ec2426627dbb1e0d96c06c3ffa0b14d36d0
- https://lists.debian.org/debian-lts-announce/2020/02/msg00023.html
- https://lists.debian.org/debian-lts-announce/2020/08/msg00000.html
- https://usn.ubuntu.com/4290-1/
- https://usn.ubuntu.com/4290-2/
- https://launchpad.net/bugs/cve/CVE-2015-9542
- https://github.com/FreeRADIUS/pam_radius/commit/01173ec
- https://github.com/FreeRADIUS/pam_radius/commit/6bae92d
- https://github.com/FreeRADIUS/pam_radius/commit/ac2c1677
- https://bugzilla.redhat.com/show_bug.cgi?id=1686980
- https://security-tracker.debian.org/tracker/CVE-2015-9542
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1802060
- https://ubuntu.com/security/notices/USN-4290-1
- https://ubuntu.com/security/notices/USN-4290-2
- https://www.cve.org/CVERecord?id=CVE-2015-9542
- https://nvd.nist.gov/vuln/detail/CVE-2015-9542
- https://ubuntu.com/security/CVE-2015-9542
Frequently Asked Questions
What is the severity of CVE-2015-9542?
CVE-2015-9542 has been classified as a moderate severity vulnerability due to the potential for denial of service (DoS) through a stack-based buffer overflow.
How do I fix CVE-2015-9542?
To fix CVE-2015-9542, update pam_radius to version 2.0.0 or later for Red Hat systems, or libpam-radius-auth to the appropriate patched version for Ubuntu or Debian systems.
Which versions are affected by CVE-2015-9542?
CVE-2015-9542 affects versions of pam_radius prior to 2.0.0 and libpam-radius-auth versions prior to their respective patched releases in Ubuntu and Debian.
What impact does CVE-2015-9542 have on applications?
CVE-2015-9542 can lead to crashes of applications using the PAM stack for authentication, resulting in a denial of service condition.
Is CVE-2015-9542 exploitable remotely?
Yes, CVE-2015-9542 can be exploited remotely if an attacker can authenticate against a system using the vulnerable PAM configuration.
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