An FR-GV-303 issue in FreeRADIUS 3.x before 3.0.15 allows "DHCP - Infinite read in dhcp_attr2vp()" and a denial of service.

The remote Redhat Enterprise Linux 5 host has one or more packages installed that are affected by multiple vulnerabilities that have been acknowledged by the vendor but will not be patched.

  - freeradius: Out-of-bounds write in rad_coalesce() (CVE-2017-10979)

  - modules/rlm_unix/rlm_unix.c in FreeRADIUS before 2.2.0, when unix mode is enabled for user authentication,     does not properly check the password expiration in /etc/shadow, which allows remote authenticated users to     authenticate using an expired password. (CVE-2011-4966)

  - FreeRADIUS 2.2.x before 2.2.8 and 3.0.x before 3.0.9 does not properly check revocation of intermediate CA     certificates. (CVE-2015-4680)

Note that Nessus has not tested for these issues but has instead relied on the package manager's report that the package is installed.

This update for freeradius-server fixes the following issues :

Fix a number of security issues found via fuzzing by Guido Vranken See http://freeradius.org/security/fuzzer-2017.html for details.
(boo#1049086)

  - CVE-2017-10987 / FR-GV-304: DHCP - Buffer over-read in     fr_dhcp_decode_suboptions()

  - CVE-2017-10986 / FR-GV-303: DHCP - Infinite read in     dhcp_attr2vp()

  - FR-AD-001: Use strncmp() instead of memcmp() for string     data

  - CVE-2017-10983 / FR-GV-206: DHCP - Read overflow when     decoding option 63

  - CVE-2017-10985 / FR-GV-302: Infinite loop and memory     exhaustion with 'concat' attributes 

  - CVE-2017-10984 / FR-GV-301: Write overflow in     data2vp_wimax()

  - FR-AD-002: String lifetime issues in rlm_python

  - FR-GV-305: Decode 'signed' attributes correctly

  - CVE-2017-10978 / FR-GV-201: Read / write overflow in     make_secret()

According to the versions of the freeradius package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - An integer overflow leading to a heap-buffer overflow     was found in the libnl library. An attacker could use     this flaw to cause an application compiled with libnl     to crash or possibly execute arbitrary code in the     context of the user running such an application.
    (CVE-2017-0553)

  - An out-of-bounds read and write flaw was found in the     way FreeRADIUS server handled RADIUS packets. A remote     attacker could use this flaw to crash the FreeRADIUS     server by sending a specially crafted RADIUS packet.
    (CVE-2017-10978)

  - A denial of service flaw was found in the way     FreeRADIUS server handled certain attributes in request     packets. A remote attacker could use this flaw to cause     the FreeRADIUS server to enter an infinite loop,     consume increasing amounts of memory resources, and     ultimately crash by sending a specially crafted request     packet. (CVE-2017-10985)

  - Multiple out-of-bounds read flaws were found in the way     FreeRADIUS server handled decoding of DHCP packets. A     remote attacker could use these flaws to crash the     FreeRADIUS server by sending a specially crafted DHCP     request. (CVE-2017-10986, CVE-2017-10987)

  - An out-of-bounds read flaw was found in the way     FreeRADIUS server handled decoding of DHCP packets. A     remote attacker could use this flaw to crash the     FreeRADIUS server by sending a specially crafted DHCP     request. (CVE-2017-10983)

  - Multiple out-of-bounds read flaws were found in the way     FreeRADIUS server handled decoding of DHCP packets. A     remote attacker could use these flaws to crash the     FreeRADIUS server by sending a specially crafted DHCP     request. (CVE-2017-10986, CVE-2017-10987)

  - An out-of-bounds write flaw was found in the way     FreeRADIUS server handled certain attributes in request     packets. A remote attacker could use this flaw to crash     the FreeRADIUS server or to execute arbitrary code in     the context of the FreeRADIUS server process by sending     a specially crafted request packet. (CVE-2017-10984)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

This update for freeradius-server fixes the following issues :

  - update to 3.0.15 (bsc#1049086)

  - Bind the lifetime of program name and python path to the     module

  - CVE-2017-10978: FR-GV-201: Check input / output length     in make_secret() (bsc#1049086)

  - CVE-2017-10983: FR-GV-206: Fix read overflow when     decoding DHCP option 63 (bsc#1049086)

  - CVE-2017-10984: FR-GV-301: Fix write overflow in     data2vp_wimax() (bsc#1049086) 

  - CVE-2017-10985: FR-GV-302: Fix infinite loop and memory     exhaustion with 'concat' attributes (bsc#1049086)

  - CVE-2017-10986: FR-GV-303: Fix infinite read in     dhcp_attr2vp() (bsc#1049086)

  - CVE-2017-10987: FR-GV-304: Fix buffer over-read in     fr_dhcp_decode_suboptions() (bsc#1049086)

  - CVE-2017-10988: FR-GV-305: Decode 'signed' attributes     correctly. (bsc#1049086) 

  - FR-AD-001: use strncmp() instead of memcmp() for bounded     data

  - Print messages when we see deprecated configuration     items

  - Show reasons why we couldn't parse a certificate expiry     time

  - Be more accepting about truncated ASN1 times.

  - Fix OpenSSL API issue which could leak small amounts of     memory.

  - For Access-Reject, call rad_authlog() after running the     post-auth section, just like for Access-Accept.

  - Don't crash when reading corrupted data from session     resumption cache.

  - Parse port in dhcpclient.

  - Don't leak memory for OpenSSL.

  - Portability fixes taken from OpenBSD port collection.

  - run rad_authlog after post-auth for Access-Reject.

  - Don't process VMPS packets twice.

  - Fix attribute truncation in rlm_perl

  - Fix bug when processing huntgroups.

  - FR-AD-002 - Bind the lifetime of program name and python     path to the module

  - FR-AD-003 - Pass correct statement length into     sqlite3_prepare[_v2]

This update was imported from the SUSE:SLE-12-SP3:Update update project.

An update for freeradius is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

FreeRADIUS is a high-performance and highly configurable free Remote Authentication Dial In User Service (RADIUS) server, designed to allow centralized authentication and authorization for a network.

Security Fix(es) :

* An out-of-bounds write flaw was found in the way FreeRADIUS server handled certain attributes in request packets. A remote attacker could use this flaw to crash the FreeRADIUS server or to execute arbitrary code in the context of the FreeRADIUS server process by sending a specially crafted request packet. (CVE-2017-10984)

* An out-of-bounds read and write flaw was found in the way FreeRADIUS server handled RADIUS packets. A remote attacker could use this flaw to crash the FreeRADIUS server by sending a specially crafted RADIUS packet. (CVE-2017-10978)

* An out-of-bounds read flaw was found in the way FreeRADIUS server handled decoding of DHCP packets. A remote attacker could use this flaw to crash the FreeRADIUS server by sending a specially crafted DHCP request. (CVE-2017-10983)

* A denial of service flaw was found in the way FreeRADIUS server handled certain attributes in request packets. A remote attacker could use this flaw to cause the FreeRADIUS server to enter an infinite loop, consume increasing amounts of memory resources, and ultimately crash by sending a specially crafted request packet. (CVE-2017-10985)

* Multiple out-of-bounds read flaws were found in the way FreeRADIUS server handled decoding of DHCP packets. A remote attacker could use these flaws to crash the FreeRADIUS server by sending a specially crafted DHCP request. (CVE-2017-10986, CVE-2017-10987)

Red Hat would like to thank the FreeRADIUS project for reporting these issues. Upstream acknowledges Guido Vranken as the original reporter of these issues.

Security Fix(es) :

  - An out-of-bounds write flaw was found in the way     FreeRADIUS server handled certain attributes in request     packets. A remote attacker could use this flaw to crash     the FreeRADIUS server or to execute arbitrary code in     the context of the FreeRADIUS server process by sending     a specially crafted request packet. (CVE-2017-10984)

  - An out-of-bounds read and write flaw was found in the     way FreeRADIUS server handled RADIUS packets. A remote     attacker could use this flaw to crash the FreeRADIUS     server by sending a specially crafted RADIUS packet.
    (CVE-2017-10978)

  - An out-of-bounds read flaw was found in the way     FreeRADIUS server handled decoding of DHCP packets. A     remote attacker could use this flaw to crash the     FreeRADIUS server by sending a specially crafted DHCP     request. (CVE-2017-10983)

  - A denial of service flaw was found in the way FreeRADIUS     server handled certain attributes in request packets. A     remote attacker could use this flaw to cause the     FreeRADIUS server to enter an infinite loop, consume     increasing amounts of memory resources, and ultimately     crash by sending a specially crafted request packet.
    (CVE-2017-10985)

  - Multiple out-of-bounds read flaws were found in the way     FreeRADIUS server handled decoding of DHCP packets. A     remote attacker could use these flaws to crash the     FreeRADIUS server by sending a specially crafted DHCP     request. (CVE-2017-10986, CVE-2017-10987)

This update for freeradius-server fixes the following issues :

  - update to 3.0.15 (bsc#1049086)

  - Bind the lifetime of program name and python path to the     module

  - CVE-2017-10978: FR-GV-201: Check input / output length     in make_secret() (bsc#1049086)

  - CVE-2017-10983: FR-GV-206: Fix read overflow when     decoding DHCP option 63 (bsc#1049086)

  - CVE-2017-10984: FR-GV-301: Fix write overflow in     data2vp_wimax() (bsc#1049086)

  - CVE-2017-10985: FR-GV-302: Fix infinite loop and memory     exhaustion with 'concat' attributes (bsc#1049086)

  - CVE-2017-10986: FR-GV-303: Fix infinite read in     dhcp_attr2vp() (bsc#1049086)

  - CVE-2017-10987: FR-GV-304: Fix buffer over-read in     fr_dhcp_decode_suboptions() (bsc#1049086)

  - CVE-2017-10988: FR-GV-305: Decode 'signed' attributes     correctly. (bsc#1049086)

  - FR-AD-001: use strncmp() instead of memcmp() for bounded     data

  - Print messages when we see deprecated configuration     items

  - Show reasons why we couldn't parse a certificate expiry     time

  - Be more accepting about truncated ASN1 times.

  - Fix OpenSSL API issue which could leak small amounts of     memory.

  - For Access-Reject, call rad_authlog() after running the     post-auth section, just like for Access-Accept.

  - Don't crash when reading corrupted data from session     resumption cache.

  - Parse port in dhcpclient.

  - Don't leak memory for OpenSSL.

  - Portability fixes taken from OpenBSD port collection.

  - run rad_authlog after post-auth for Access-Reject.

  - Don't process VMPS packets twice.

  - Fix attribute truncation in rlm_perl

  - Fix bug when processing huntgroups.

  - FR-AD-002 - Bind the lifetime of program name and python     path to the module

  - FR-AD-003 - Pass correct statement length into     sqlite3_prepare[_v2]

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Guido Vranken discovered that FreeRADIUS, an open source implementation of RADIUS, the IETF protocol for AAA (Authorisation, Authentication, and Accounting), did not properly handle memory when processing packets. This would allow a remote attacker to cause a denial-of-service by application crash, or potentially execute arbitrary code.

All those issues are covered by this single DSA, but it's worth noting that not all issues affect all releases :

  - CVE-2017-10978 and CVE-2017-10983 affect both jessie and     stretch;
  - CVE-2017-10979, CVE-2017-10980, CVE-2017-10981 and     CVE-2017-10982 affect only jessie;

  - CVE-2017-10984, CVE-2017-10985, CVE-2017-10986 and     CVE-2017-10987 affect only stretch.

The remote Oracle Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2017-2389 advisory.

    - Related: Bug#1469414 CVE-2017-10984 freeradius: Out-of-bounds write in                            data2vp_wimax()
    - Resolves: Bug#1469409 CVE-2017-10978 freeradius: Out-of-bounds read/write due                             to improper output buffer size check in make_secret()
    - Resolves: Bug#1469413 CVE-2017-10983 freeradius: Out-of-bounds read in                             fr_dhcp_decode() when decoding option 63
    - Resolves: Bug#1469414 CVE-2017-10984 freeradius: Out-of-bounds write in                             data2vp_wimax()
    - Resolves: Bug#1469417 CVE-2017-10985 freeradius: Infinite loop and memory                             exhaustion with 'concat' attributes
    - Resolves: Bug#1469418 CVE-2017-10986 freeradius: Infinite read in                             dhcp_attr2vp()

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Ubuntu 14.04 LTS / 16.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-3369-1 advisory.

    Guido Vranken discovered that FreeRADIUS incorrectly handled memory when decoding packets. A remote     attacker could use this issue to cause FreeRADIUS to crash or hang, resulting in a denial of service, or     possibly execute arbitrary code.

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

- Upgrade to upstream v3.0.15 release. See upstream     ChangeLog for details (in freeradius-doc subpackage).

  - Resolves: Bug#1471848 CVE-2017-10978 freeradius:
    Out-of-bounds read/write due to improper output buffer     size check in make_secret()

  - Resolves: Bug#1471860 CVE-2017-10983 freeradius:
    Out-of-bounds read in fr_dhcp_decode() when decoding     option 63

  - Resolves: Bug#1471861 CVE-2017-10984 freeradius:
    Out-of-bounds write in data2vp_wimax()

  - Resolves: Bug#1471863 CVE-2017-10985 freeradius:
    Infinite loop and memory exhaustion with 'concat'     attributes

  - Resolves: Bug#1471864 CVE-2017-10986 freeradius:
    Infinite read in dhcp_attr2vp()

  - Resolves: Bug#1471865 CVE-2017-10987 freeradius: Buffer     over-read in fr_dhcp_decode_suboptions()

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website.
Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

- Upgrade to upstream v3.0.15 release. See upstream     ChangeLog for details (in freeradius-doc subpackage).

  - Resolves: Bug#1471848 CVE-2017-10978 freeradius:
    Out-of-bounds read/write due to improper output buffer     size check in make_secret()

  - Resolves: Bug#1471860 CVE-2017-10983 freeradius:
    Out-of-bounds read in fr_dhcp_decode() when decoding     option 63

  - Resolves: Bug#1471861 CVE-2017-10984 freeradius:
    Out-of-bounds write in data2vp_wimax()

  - Resolves: Bug#1471863 CVE-2017-10985 freeradius:
    Infinite loop and memory exhaustion with 'concat'     attributes

  - Resolves: Bug#1471864 CVE-2017-10986 freeradius:
    Infinite read in dhcp_attr2vp()

  - Resolves: Bug#1471865 CVE-2017-10987 freeradius: Buffer     over-read in fr_dhcp_decode_suboptions()

  - Resolves: Bug#1456220 freeradius-3.0.15 is available

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website.
Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	Name	Product	Family	Severity
198495	RHEL 5 : freeradius (Unpatched Vulnerability)	Nessus	Red Hat Local Security Checks	critical
104164	openSUSE Security Update : freeradius-server (openSUSE-2017-1192)	Nessus	SuSE Local Security Checks	critical
103006	EulerOS 2.0 SP2 : freeradius (EulerOS-SA-2017-1168)	Nessus	Huawei Local Security Checks	high
103005	EulerOS 2.0 SP1 : freeradius (EulerOS-SA-2017-1167)	Nessus	Huawei Local Security Checks	high
102810	openSUSE Security Update : freeradius-server (openSUSE-2017-972)	Nessus	SuSE Local Security Checks	critical
102762	CentOS 7 : freeradius (CESA-2017:2389)	Nessus	CentOS Local Security Checks	critical
102661	Scientific Linux Security Update : freeradius on SL7.x x86_64 (20170802)	Nessus	Scientific Linux Local Security Checks	critical
102579	SUSE SLES12 Security Update : freeradius-server (SUSE-SU-2017:2202-1)	Nessus	SuSE Local Security Checks	critical
102371	Debian DSA-3930-1 : freeradius - security update	Nessus	Debian Local Security Checks	critical
102344	Oracle Linux 7 : freeradius (ELSA-2017-2389)	Nessus	Oracle Linux Local Security Checks	critical
102119	RHEL 7 : freeradius (RHSA-2017:2389)	Nessus	Red Hat Local Security Checks	critical
102033	Ubuntu 14.04 LTS / 16.04 LTS : FreeRADIUS vulnerabilities (USN-3369-1)	Nessus	Ubuntu Local Security Checks	critical
102024	Fedora 25 : freeradius (2017-24c64c531a)	Nessus	Fedora Local Security Checks	critical
102022	Fedora 26 : freeradius (2017-0d726dbed3)	Nessus	Fedora Local Security Checks	critical

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