Detections
Analytics
Amazon Linux AMI : freeradius (ALAS-2017-865)
critical Nessus Plugin ID 102180
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Synopsis
The remote Amazon Linux AMI host is missing a security update.Description
Out-of-bounds read in fr_dhcp_decode_options() :An out-of-bounds read flaw was found in the way FreeRADIUS server handles decoding of DHCP packets. A remote attacker could use this flaw to crash the FreeRADIUS server by sending a specially crafted DHCP request. (CVE-2017-10982)
Out-of-bounds read in fr_dhcp_decode() when decoding option 63 :
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)
Memory leak in decode_tlv() :
A memory leak flaw was found in the way FreeRADIUS server handles decoding of DHCP packets. A remote attacker could use this flaw to cause the FreeRADIUS server to consume an increasing amount of memory resources over time possibly leading to a crash due to memory exhaustion. (CVE-2017-10980)
Memory leak in fr_dhcp_decode() :
A memory leak flaw was found in the way FreeRADIUS server handles decoding of DHCP packets. A remote attacker could use this flaw to cause the FreeRADIUS server to consume an increasing amount of memory resources over time, possibly leading to a crash due to memory exhaustion, by sending specially crafted DHCP packets.
(CVE-2017-10981)
Out-of-bounds write in rad_coalesce() :
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-2017-10979)
Out-of-bounds read/write due to improper output buffer size check in make_secret() :
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)
Solution
Run 'yum update freeradius' to update your system.See Also
Plugin Details
Severity: Critical
ID: 102180
File Name: ala_ALAS-2017-865.nasl
Version: 3.3
Type: local
Agent: unix
Published: 8/4/2017
Updated: 4/18/2018
Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 5.9
CVSS v2
Risk Factor: High
Base Score: 7.5
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P
CVSS v3
Risk Factor: Critical
Base Score: 9.8
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Vulnerability Information
CPE: p-cpe:/a:amazon:linux:freeradius-unixodbc, p-cpe:/a:amazon:linux:freeradius-debuginfo, p-cpe:/a:amazon:linux:freeradius-ldap, p-cpe:/a:amazon:linux:freeradius-krb5, p-cpe:/a:amazon:linux:freeradius, p-cpe:/a:amazon:linux:freeradius-postgresql, p-cpe:/a:amazon:linux:freeradius-python, p-cpe:/a:amazon:linux:freeradius-perl, cpe:/o:amazon:linux, p-cpe:/a:amazon:linux:freeradius-mysql, p-cpe:/a:amazon:linux:freeradius-utils
Required KB Items: Host/local_checks_enabled, Host/AmazonLinux/release, Host/AmazonLinux/rpm-list
Patch Publication Date: 8/3/2017
Reference Information
CVE: CVE-2017-10978, CVE-2017-10979, CVE-2017-10980, CVE-2017-10981, CVE-2017-10982, CVE-2017-10983
ALAS: 2017-865