Date: Fri, 8 Jan 2016 14:55:17 -0500 (EST) From: cve-assign@...re.org To: huzaifas@...hat.com Cc: cve-assign@...re.org, oss-security@...ts.openwall.com, jmm@...ian.org Subject: Re: CVE Request: freeradius: the EAP-PWD module performs insufficient validation on packets received from an EAP peer -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 > The FreeRADIUS project has reported a flaw that affects the EAP-PWD > module of the freeradius package versions 3.0 up to 3.0.8. This module > is not enabled by default, so administrators must have manually enabled > it for their servers to be vulnerable. > > http://freeradius.org/security.html#eap-pwd-2015 We have revisited this and decided that it needs unique CVE IDs. As mentioned on that security.html page, "These issues were found by Jouni Malinen as part of investigating http://w1.fi/security/2015-4/" - this suggested a possibility that the CVE IDs listed in http://www.openwall.com/lists/oss-security/2015/05/31/6 would be applicable. However, FreeRADIUS apparently has an independent implementation of EAP-pwd. This led to a somewhat unusual situation in which most of the vulnerability findings were, at a high level, the same -- but resulted from a different set of mistakes within a different codebase. The applicable FreeRADIUS changes can be found in the "Commits on May 4, 2015" section of: https://github.com/FreeRADIUS/freeradius-server/commits/v3.0.x/src/modules/rlm_eap/types/rlm_eap_pwd and are distinct from the changes in the http://w1.fi/security/2015-4/ patches. We are associating the three CVE IDs below with the items on the security.html list, not with the specific FreeRADIUS commits. >> The EAP-PWD packet length is not checked before the first byte is >> dereferenced. A zero-length EAP-PWD packet will cause the module to >> dereference a NULL pointer, and will cause the server to crash. Use CVE-2015-8762. >> The commit message payload length is not validated before the packet >> is decoded. This can result in a read overflow in the server. >> >> The confirm message payload length is not validated before the packet > is decoded. This can result in a read overflow in the server. Use CVE-2015-8763 for both of these issues. >> A strcpy() was used to pack a C string into an EAP-PWD packet. This >> would result in an over-run of the destination buffer by one byte. Use CVE-2015-8764. - -- CVE assignment team, MITRE CVE Numbering Authority M/S M300 202 Burlington Road, Bedford, MA 01730 USA [ PGP key available through http://cve.mitre.org/cve/request_id.html ] -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAEBCAAGBQJWkBOHAAoJEL54rhJi8gl5Od0P/1Y8DafilHgNgmQP4D5DfdfB x9yuBDJt/rr8NnrbXsIjkuQMIB+UolyAcgEB4CDqiwh4SyYeZSbO1rj3zP0/1uS1 TyjLGLLiKHc3B53vEK/m3tAZ1M5GEsp3rIH+McCsbip+WlDpkuKexJ8E0kBleWiH Mg5UslARv6b7yS5QIoH93MiiZSl+w0V0UtWIkEP1BfCskJhj9DvVd161hyRDcT7m ZG52NdBYzCUYP4BC58qEPYtGwM1+OMjaHa6MjkpzqvubMwtdzGK15zcljy/yvN6k oY7euhV55PbPsajuzHihBWWp0oejl5gBEiGX6fqCUS8BIoadaOFI9hKkWEBVKnav wrE7+f03C2GO/rs46jp1737qtNzIrBklyTblDItLDA1QDqpc5q/Sb9xlLycZ9o8H v++vSz3ZQILfi72T7BhhdMl5SQlfNuxdDw0BJBA6tC2+1thZWZBpIg/lXajHo9r9 E3qszBo0cmh5MSAEdWOMGEInt9DvHymPTcXEtZYFQph54Xb1YS/YYpItX9w5e7e+ nciRvLRFQwWzC0XJKv9klliStJygxW0g27StoMXncnDchRiIiBV4ypgPJITawi0L 9LWMSpAhS2VYAAJQjchLaUHFAHgmXwsIKEJJ2k7iuUXF6Qytee3k2uRieRQ3Rvx0 XhrlBiLeO/vhmZJ8trch =16O5 -----END PGP SIGNATURE-----
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