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CVE-2022-39244— Buffer overflow in pjlib scanner and pjmedia

Quick assessment

Affected
pjsip pjproject
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

PJSIP是一个免费和开源的多媒体通信库,用C语言编写,实现基于标准的协议,如SIP, SDP, RTP, STUN, TURN,和ICE。 PJSIP 2.13之前的版本存在安全漏洞,该漏洞源于其PJSIP解析器、PJMEDIA RTP解码器和PJMEDIA SDP解析器受到缓冲区溢出漏洞的影响导致连接到不受信任客户端的用户存在风险。

CVSS 7.5 · High EPSS 1.49% · P73

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2022-39244

Vulnerability Information

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Vulnerability Title
Buffer overflow in pjlib scanner and pjmedia
Source: CVE Program / CVE List V5
Vulnerability Description
PJSIP is a free and open source multimedia communication library written in C. In versions of PJSIP prior to 2.13 the PJSIP parser, PJMEDIA RTP decoder, and PJMEDIA SDP parser are affeced by a buffer overflow vulnerability. Users connecting to untrusted clients are at risk. This issue has been patched and is available as commit c4d3498 in the master branch and will be included in releases 2.13 and later. Users are advised to upgrade. There are no known workarounds for this issue.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
未进行输入大小检查的缓冲区拷贝(传统缓冲区溢出)
Source: CVE Program / CVE List V5
Vulnerability Title
PJSIP 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
PJSIP是一个免费和开源的多媒体通信库,用C语言编写,实现基于标准的协议,如SIP, SDP, RTP, STUN, TURN,和ICE。 PJSIP 2.13之前的版本存在安全漏洞,该漏洞源于其PJSIP解析器、PJMEDIA RTP解码器和PJMEDIA SDP解析器受到缓冲区溢出漏洞的影响导致连接到不受信任客户端的用户存在风险。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
pjsip pjproject < 2.13 -

II. Public POCs for CVE-2022-39244

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III. Intelligence Information for CVE-2022-39244

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Patches & Fixes for CVE-2022-39244 (1)

Vendor Advisories for CVE-2022-39244 (3)

Mailing List Discussions for CVE-2022-39244 (2)

IV. Related Vulnerabilities

V. Comments for CVE-2022-39244

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