CVE-2017-16872

Severity Score

9.8

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

An issue was discovered in Teluu pjproject (pjlib and pjlib-util) in PJSIP before 2.7.1. Parsing the numeric header fields in a SIP message (like cseq, ttl, port, etc.) all had the potential to overflow, either causing unintended values to be captured or, if the values were subsequently converted back to strings, a buffer overrun. This will lead to a potential exploit using carefully crafted invalid values.

Se ha descubierto un error en Teluu pjproject (pjlib y pjlib-util) en PJSIP, en versiones anteriores a la 2.7.1. Analizando los campos de cabeceras numéricas en un mensaje SIP (como cseq, ttl, port, etc.), todos tienen el potencial de causar una saturación de búfer, ya sea haciendo que se capturen valores no planeados o si los valores se volvieron a convertir a cadenas posteriormente. Esto dará lugar a que un posible exploit utilice valores no válidos manipulados cuidadosamente.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2017-11-17 CVE Reserved
2017-11-17 CVE Published
2023-05-08 EPSS Updated
2024-08-05 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer

CAPEC

References (3)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://trac.pjsip.org/repos/milestone/release-2.7.1	2021-09-02
https://trac.pjsip.org/repos/ticket/2056	2021-09-02
https://www.debian.org/security/2018/dsa-4170	2021-09-02

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Teluu Search vendor "Teluu"		Pjsip Search vendor "Teluu" for product "Pjsip"				< 2.7.1 Search vendor "Teluu" for product "Pjsip" and version " < 2.7.1"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				9.0 Search vendor "Debian" for product "Debian Linux" and version "9.0"		-		Affected