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CVE-2021-3502

Quick assessment

Affected
n/a avahi
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.

Avahi是一套用于Linux的本地服务发现工具。 avahi 0.8-5 存在安全漏洞，该漏洞允许本地攻击者通过avahi套接字或dbus方法请求主机名解析来崩溃avahi服务。

AI Predicted 5.5 Difficulty: Easy EPSS 0.37% · P29
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I. Basic Information for CVE-2021-3502

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw was found in avahi 0.8-5. A reachable assertion is present in avahi_s_host_name_resolver_start function allowing a local attacker to crash the avahi service by requesting hostname resolutions through the avahi socket or dbus methods for invalid hostnames. The highest threat from this vulnerability is to the service availability.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
可达断言
Source: CVE Program / CVE List V5
Vulnerability Title
avahi 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Avahi是一套用于Linux的本地服务发现工具。 avahi 0.8-5 存在安全漏洞，该漏洞允许本地攻击者通过avahi套接字或dbus方法请求主机名解析来崩溃avahi服务。
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
- avahi 0.8-5 -

II. Public POCs for CVE-2021-3502

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III. Intelligence Information for CVE-2021-3502

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Vendor Advisories for CVE-2021-3502 (1)

Other References for CVE-2021-3502 (1)

Same Patch Batch · n/a · 2021-05-07 · 42 CVEs total

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CVE-2021-27569 Emote Remote Mouse 安全漏洞
CVE-2021-26122 LivingLogic XIST4C 跨站脚本漏洞
CVE-2021-27571 Emote Remote Mouse 访问控制错误漏洞
CVE-2021-27572 Emote Remote Mouse 安全漏洞
CVE-2021-27573 Emote Remote Mouse 安全漏洞
CVE-2021-27574 Emote Remote Mouse 安全漏洞
CVE-2021-32470 Pixel＆Tonic Craft CMS 跨站脚本漏洞
CVE-2021-31756 Tenda AC11 缓冲区错误漏洞
CVE-2021-31758 Tenda AC11 缓冲区错误漏洞
CVE-2021-31755 Tenda AC11 缓冲区错误漏洞

Showing top 20 of 42 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: avahi
Same vendor: n/a
Same weakness: CWE-617

V. Comments for CVE-2021-3502

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