Title: Retired: OPIE Accessfile.C Remote Denial of Service Vulnerability
Severity: MODERATE
Description:
OPIE is a package and set of utilities to allow one-time passwords for multiple SSH applications.
OPIE is prone to a remote denial-of-service vulnerability due to an off-by-one error.
Specifically, the file 'accessfile.c' is prone to an off-by-one flaw in a bounds-checking operation. This file handles trusted network file and per-user overrides.
Remote attackers may exploit this issue to crash the application using the affected library, resulting in a denial of service. Given the nature of this vulnerability, attackers may be able to exploit it to execute arbitrary code, but this has not been confirmed.
OpenSSH using OPIE is reported vulnerable; other applications may also be affected.
NOTE: Further reports indicate that this issue is not exploitable, so this BID is being retired.
Affected Products:
- NRL OPIE 2.32.0
- NRL OPIE 2.4.0
References:
- Nico Golde: Debian Bug report logs - #414015 off-by-one in accessfile.c
- The Inner Net: OPIE
Juniper Networks provides this content via a wide variety of sources and production methods. If notified of errors or omissions in the content of this page, Juniper Networks, at its discretion, will modify or remove the page or leave the content as is, depending on various factors including but not limited to the reputation and authority of the party providing the notification. Please use the contact information displayed elsewhere on this page to report any errors or omissions regarding the content on this page.
