Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

CVE-2021-43303

Quick assessment

Affected
teluu pjsip
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.

Pjsua Api是一个高级 Api。用于构建 Sip 多媒体用户代理应用程序。 PJSUA API 存在安全漏洞，攻击者可利用该漏洞通过控制的buffer参数导致缓冲区溢出。

AI Predicted 7.5 Difficulty: Hard EPSS 2.36% · P82

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2021-43303

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Buffer overflow in PJSUA API when calling pjsua_call_dump. An attacker-controlled 'buffer' argument may cause a buffer overflow, since supplying an output buffer smaller than 128 characters may overflow the output buffer, regardless of the 'maxlen' argument supplied
Source: CVE Program / CVE List V5
CVSS Information
N/A
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
PJSUA API 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Pjsua Api是一个高级 Api。用于构建 Sip 多媒体用户代理应用程序。 PJSUA API 存在安全漏洞，攻击者可利用该漏洞通过控制的buffer参数导致缓冲区溢出。
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
teluu pjsip unspecified ~ 2.11.1 -

II. Public POCs for CVE-2021-43303

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2021-43303

请登录查看更多情报信息。

Vendor Advisories for CVE-2021-43303 (2)

Mailing List Discussions for CVE-2021-43303 (3)

Same Patch Batch · teluu · 2022-02-16 · 5 CVEs total

CVE-2021-43299 Pjsua Api 缓冲区错误漏洞
CVE-2021-43300 Pjsua Api 缓冲区错误漏洞
CVE-2021-43301 Pjsua Api 缓冲区错误漏洞
CVE-2021-43302 Pjsua Api 缓冲区错误漏洞

IV. Related Vulnerabilities

Same product: pjsip
Same vendor: teluu
Same weakness: CWE-120

V. Comments for CVE-2021-43303

No comments yet

Leave a comment