Digium Asterisk up to 13.18.3/14.7.3/15.1.3 RTCP Stack RTCP Packet memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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4.7$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in Digium Asterisk up to 13.18.3/14.7.3/15.1.3. The impacted element is an unknown function of the component RTCP Stack. Performing a manipulation as part of RTCP Packet results in memory corruption. This vulnerability is reported as CVE-2017-17664. The attack is possible to be carried out remotely. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Digium Asterisk up to 13.18.3/14.7.3/15.1.3 (Communications System). This affects an unknown code of the component RTCP Stack. The manipulation as part of a RTCP Packet leads to a memory corruption vulnerability. CWE is classifying the issue as 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. This is going to have an impact on availability. The summary by CVE is:

A Remote Crash issue was discovered in Asterisk Open Source 13.x before 13.18.4, 14.x before 14.7.4, and 15.x before 15.1.4 and Certified Asterisk before 13.13-cert9. Certain compound RTCP packets cause a crash in the RTCP Stack.

The bug was discovered 12/13/2017. The weakness was disclosed 12/13/2017 (Website). It is possible to read the advisory at downloads.digium.com. This vulnerability is uniquely identified as CVE-2017-17664 since 12/13/2017. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 105473 (Fedora 26 : asterisk (2017-38fbcdffc3)), 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 176261 (Debian Security Update for asterisk (DSA 4076-1)).

Upgrading to version 13.18.4, 14.7.4 or 15.1.4 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 (105473) and SecurityFocus (BID 102201†). The entries VDB-109241, VDB-109242 and VDB-110152 are pretty similar. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.8
VulDB Meta Temp Score: 4.7

VulDB Base Score: 3.7
VulDB Temp Score: 3.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.9
NVD Vector: 🔍

CVSSv2info

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

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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: 105473
Nessus Name: Fedora 26 : asterisk (2017-38fbcdffc3)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 865432
OpenVAS Name: Asterisk DoS Vulnerability
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: Asterisk 13.18.4/14.7.4/15.1.4

Timelineinfo

12/13/2017 🔍
12/13/2017 +0 days 🔍
12/13/2017 +0 days 🔍
12/13/2017 +0 days 🔍
12/13/2017 +0 days 🔍
12/14/2017 +1 days 🔍
12/26/2017 +12 days 🔍
12/28/2017 +2 days 🔍
01/18/2023 +1847 days 🔍

Sourcesinfo

Vendor: digium.com

Advisory: FEDORA-2017-38fbcdffc3
Status: Not defined

CVE: CVE-2017-17664 (🔍)
GCVE (CVE): GCVE-0-2017-17664
GCVE (VulDB): GCVE-100-110667

OVAL: 🔍

SecurityFocus: 102201 - Asterisk CVE-2017-17664 Remote Denial of Service Vulnerability
SecurityTracker: 1040009

See also: 🔍

Entryinfo

Created: 12/14/2017 07:54
Updated: 01/18/2023 08:44
Changes: 12/14/2017 07:54 (79), 12/17/2019 16:14 (4), 01/27/2021 11:40 (3), 01/18/2023 08:44 (3)
Complete: 🔍
Cache ID: 216::103

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