FreeRADIUS up to 3.0.14 fr_dhcp_decode_suboptions memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.3$0-$5k0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in FreeRADIUS up to 3.0.14. This impacts the function fr_dhcp_decode_suboptions. Such manipulation leads to memory corruption. This vulnerability is documented as CVE-2017-10987. The attack can be executed remotely. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in FreeRADIUS up to 3.0.14 (Network Authentication Software). It has been rated as problematic. Affected by this issue is the function fr_dhcp_decode_suboptions. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is availability. CVE summarizes:

An FR-GV-304 issue in FreeRADIUS 3.x before 3.0.15 allows "DHCP - Buffer over-read in fr_dhcp_decode_suboptions()" and a denial of service.

The bug was discovered 06/18/2017. The weakness was released 07/17/2017 by Guido Vranken (Website). The advisory is available at freeradius.org. This vulnerability is handled as CVE-2017-10987 since 07/06/2017. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details are known, but there is no available exploit.

The vulnerability was handled as a non-public zero-day exploit for at least 29 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 102022 (Fedora 26 : freeradius (2017-0d726dbed3)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 276764 (Fedora Security Update for freeradius (FEDORA-2017-24c64c531a)).

Upgrading to version 3.0.15 eliminates this vulnerability. A possible mitigation has been published 2 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (102022) and SecurityFocus (BID 99970†). Entries connected to this vulnerability are available at VDB-103697, VDB-103698, VDB-103699 and VDB-103700. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 102022
Nessus Name: Fedora 26 : freeradius (2017-0d726dbed3)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 53676
OpenVAS Name: Debian Security Advisory DSA 3930-1 (freeradius - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: FreeRADIUS 3.0.15

Timelineinfo

06/18/2017 🔍
07/06/2017 +18 days 🔍
07/17/2017 +11 days 🔍
07/17/2017 +0 days 🔍
07/17/2017 +0 days 🔍
07/18/2017 +1 days 🔍
07/27/2017 +9 days 🔍
07/28/2017 +1 days 🔍
12/13/2022 +1964 days 🔍

Sourcesinfo

Advisory: RHSA-2017:2389
Researcher: Guido Vranken
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-10987 (🔍)
GCVE (CVE): GCVE-0-2017-10987
GCVE (VulDB): GCVE-100-103706

OVAL: 🔍

SecurityFocus: 99970 - FreeRADIUS 'modules/proto_dhcp/dhcp.c' Out-of-Bounds Read Denial of Service Vulnerability

See also: 🔍

Entryinfo

Created: 07/18/2017 10:59
Updated: 12/13/2022 08:27
Changes: 07/18/2017 10:59 (77), 10/26/2019 21:10 (6), 12/13/2022 08:27 (4)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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