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CVE-2021-26713

Quick assessment

Affected
n/a n/a
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.

Digium Certified Asterisk是美国Digium公司的一套开源的电话交换机（PBX）系统软件。该软件支持语音信箱、多方语音会议、交互式语音应答(IVR)等。 Digium Certified Asterisk 中存在缓冲区错误漏洞。该漏洞源于asterisk.c中的符号比较不匹配导致产品在内存上执行操作时，未正确验证数据边界。攻击者可通过快速连续发送多个保留/取消保留请求导致应用崩溃。以下产品及版本受到影响：Sangoma Asterisk 16.16.1 之前版本, Sangoma

AI Predicted 7.5 Difficulty: Easy EPSS 1.85% · P77
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I. Basic Information for CVE-2021-26713

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A stack-based buffer overflow in res_rtp_asterisk.c in Sangoma Asterisk before 16.16.1, 17.x before 17.9.2, and 18.x before 18.2.1 and Certified Asterisk before 16.8-cert6 allows an authenticated WebRTC client to cause an Asterisk crash by sending multiple hold/unhold requests in quick succession. This is caused by a signedness comparison mismatch.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Digium Certified Asterisk 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Digium Certified Asterisk是美国Digium公司的一套开源的电话交换机（PBX）系统软件。该软件支持语音信箱、多方语音会议、交互式语音应答(IVR)等。 Digium Certified Asterisk 中存在缓冲区错误漏洞。该漏洞源于asterisk.c中的符号比较不匹配导致产品在内存上执行操作时，未正确验证数据边界。攻击者可通过快速连续发送多个保留/取消保留请求导致应用崩溃。以下产品及版本受到影响：Sangoma Asterisk 16.16.1 之前版本, Sangoma
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
- n/a n/a -

II. Public POCs for CVE-2021-26713

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III. Intelligence Information for CVE-2021-26713

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Other References for CVE-2021-26713 (2)

Same Patch Batch · n/a · 2021-02-19 · 38 CVEs total

CVE-2021-23342 8.6 HIGH Cross-site Scripting (XSS)
CVE-2020-36252 6.8 MEDIUM Owncloud 权限许可和访问控制问题漏洞
CVE-2020-36250 6.1 MEDIUM Owncloud ownCloud 加密问题漏洞
CVE-2020-36248 3.9 LOW Owncloud ownCloud 权限许可和访问控制问题漏洞
CVE-2020-36251 3.5 LOW Owncloud 权限许可和访问控制问题漏洞
CVE-2020-12374 多款 Intel Server System 产品缓冲区错误漏洞
CVE-2021-22702 Schneider PowerLogic 产品信息泄露漏洞
CVE-2020-13549 Sytech XL Reporter 权限许可和访问控制问题漏洞
CVE-2021-27328 Yeastar NeoGate TG400 路径遍历漏洞
CVE-2021-27214 ZOHO ManageEngine ServiceDesk Plus 代码问题漏洞
CVE-2021-27351 Telegram 代码问题漏洞
CVE-2020-35499 Linux kernel 代码问题漏洞
CVE-2021-27509 Visualware MyConnection Server 安全漏洞
CVE-2021-3189 Npm slashify 输入验证错误漏洞
CVE-2020-12668 HubSpot Jinjava 信息泄露漏洞
CVE-2020-12873 Alfresco Software Alfresco Enterprise和Alfresco 注入漏洞
CVE-2020-24392 Voloko Twitter-stream 信任管理问题漏洞
CVE-2020-24393 TweetStream 信任管理问题漏洞
CVE-2020-24617 Mailtrain SQL注入漏洞
CVE-2020-27997 Smartstore SmartStoreNET 跨站请求伪造漏洞

Showing top 20 of 38 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: n/a
Same vendor: n/a

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