Teluu PJSIP up to 2.7.1 SDP Parser integer overflow

CVSS Meta Temp Score
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CTI Interest Score
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7.2$0-$5k0.00

Summaryinfo

A vulnerability has been found in Teluu PJSIP up to 2.7.1 and classified as critical. This affects an unknown function of the component SDP Parser. This manipulation causes integer overflow. This vulnerability is tracked as CVE-2018-1000098. The attack is possible to be carried out remotely. No exploit exists. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Teluu PJSIP up to 2.7.1. It has been declared as critical. Affected by this vulnerability is an unknown part of the component SDP Parser. The manipulation with an unknown input leads to a integer overflow vulnerability. The CWE definition for the vulnerability is CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Teluu PJSIP version 2.7.1 and earlier contains a Integer Overflow vulnerability in pjmedia SDP parsing that can result in Crash. This attack appear to be exploitable via Sending a specially crafted message. This vulnerability appears to have been fixed in 2.7.2.

The bug was discovered 02/20/2018. The weakness was disclosed 03/13/2018 (Website). The advisory is shared at trac.pjsip.org. This vulnerability is known as CVE-2018-1000098 since 03/12/2018. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 20 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 108906 (Debian DSA-4170-1 : pjproject - security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 371280 (Asterisk Multiple Vulnerabilities (AST-2018-002, AST-2018-003,AST-2018-004,AST-2018-005)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 4 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (108906) and SecurityFocus (BID 103151†). The entries VDB-109663, VDB-109664, VDB-113685 and VDB-113687 are pretty similar. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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Version

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
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CVSSv3info

VulDB Meta Base Score: 7.4
VulDB Meta Temp Score: 7.2

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Integer overflow
CWE: CWE-190 / CWE-189
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: 108906
Nessus Name: Debian DSA-4170-1 : pjproject - security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 55511
OpenVAS Name: Debian Security Advisory DSA 4170-1 (pjproject - 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: 🔍

Timelineinfo

02/20/2018 🔍
02/21/2018 +1 days 🔍
03/12/2018 +19 days 🔍
03/12/2018 +0 days 🔍
03/13/2018 +1 days 🔍
03/13/2018 +0 days 🔍
04/09/2018 +27 days 🔍
04/10/2018 +1 days 🔍
02/21/2023 +1778 days 🔍

Sourcesinfo

Advisory: 2093
Status: Confirmed

CVE: CVE-2018-1000098 (🔍)
GCVE (CVE): GCVE-0-2018-1000098
GCVE (VulDB): GCVE-100-114397

OVAL: 🔍

SecurityFocus: 103151 - Multiple Asterisk Products CVE-2018-7284 Denial of Service Vulnerability

See also: 🔍

Entryinfo

Created: 03/13/2018 07:47
Updated: 02/21/2023 11:36
Changes: 03/13/2018 07:47 (74), 01/12/2020 16:22 (6), 02/21/2023 11:36 (4)
Complete: 🔍
Cache ID: 216::103

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