REDHAT-BUG-1066761: Buffer Overflow
First published: Wed Feb 19 2014(Updated: )
Pierre Carrier reported a stack-based buffer overflow flaw in the FreeRADIUS rlm_pap module. An authenticated user could trigger this issue by creating a large password, causing FreeRADIUS to crash. The stack protector and SSP variable re-ordering protections should help prevent this issue from being used to execute arbitrary code. Upstream fixes: 2.x: <a href="https://github.com/FreeRADIUS/freeradius-server/commit/0d606cfc29a">https://github.com/FreeRADIUS/freeradius-server/commit/0d606cfc29a</a> 3.x: <a href="https://github.com/FreeRADIUS/freeradius-server/commit/ff5147c9e5088c7">https://github.com/FreeRADIUS/freeradius-server/commit/ff5147c9e5088c7</a> master: <a href="https://github.com/FreeRADIUS/freeradius-server/commit/f610864d4c8f51d">https://github.com/FreeRADIUS/freeradius-server/commit/f610864d4c8f51d</a> References: <a href="http://lists.freebsd.org/pipermail/freebsd-bugbusters/2014-February/000610.html">http://lists.freebsd.org/pipermail/freebsd-bugbusters/2014-February/000610.html</a>
| Affected Software | Affected Version | How to fix |
|---|---|---|
| FreeRADIUS FreeRADIUS | >=2.x>=3.x |
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Reference Links
- https://github.com/FreeRADIUS/freeradius-server/commit/0d606cfc29a
- https://github.com/FreeRADIUS/freeradius-server/commit/ff5147c9e5088c7
- https://github.com/FreeRADIUS/freeradius-server/commit/f610864d4c8f51d
- http://lists.freebsd.org/pipermail/freebsd-bugbusters/2014-February/000610.html
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1066763
- https://github.com/FreeRADIUS/freeradius-server/blob/63b21e1/src/modules/rlm_pap/rlm_pap.c#L244
- https://github.com/FreeRADIUS/freeradius-server/blob/63b21e1/src/include/libradius.h#L156
- https://github.com/FreeRADIUS/freeradius-server/blob/63b21e1/src/include/libradius.h#L77
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1066761#c8
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1066761#c9
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1066761#c10
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1066761#c11
- https://access.redhat.com/support/policy/updates/errata/
- https://rhn.redhat.com/errata/RHSA-2015-1287.html
- https://bugzilla.redhat.com/show_bug.cgi?id=1066761
Frequently Asked Questions
What is the severity of REDHAT-BUG-1066761?
The vulnerability REDHAT-BUG-1066761 is considered high severity due to the potential for a stack-based buffer overflow leading to crashes.
How do I fix REDHAT-BUG-1066761?
To fix REDHAT-BUG-1066761, update FreeRADIUS to the latest version that addresses this buffer overflow flaw.
Who is affected by REDHAT-BUG-1066761?
Authenticated users of FreeRADIUS versions 2.x and 3.x are at risk of triggering the stack-based buffer overflow in REDHAT-BUG-1066761.
What module in FreeRADIUS is impacted by REDHAT-BUG-1066761?
The rlm_pap module in FreeRADIUS is specifically impacted by the vulnerability REDHAT-BUG-1066761.
What are the potential consequences of REDHAT-BUG-1066761?
The potential consequences of REDHAT-BUG-1066761 include application crashes and possible service disruption.
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