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CVE-2021-3468

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 存在安全漏洞，攻击者可利用该漏洞可以触发过载的avahi，以触发拒绝服务。

AI Predicted 5.9 Difficulty: Easy EPSS 0.44% · P36

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2021-3468

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw was found in avahi in versions 0.6 up to 0.8. The event used to signal the termination of the client connection on the avahi Unix socket is not correctly handled in the client_work function, allowing a local attacker to trigger an infinite loop. The highest threat from this vulnerability is to the availability of the avahi service, which becomes unresponsive after this flaw is triggered.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
不可达退出条件的循环(无限循环)
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 存在安全漏洞，攻击者可利用该漏洞可以触发过载的avahi，以触发拒绝服务。
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 All avahi versions 0.6 up to 0.8 -

II. Public POCs for CVE-2021-3468

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III. Intelligence Information for CVE-2021-3468

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Vendor Advisories for CVE-2021-3468 (1)

Mailing List Discussions for CVE-2021-3468 (2)

Same Patch Batch · n/a · 2021-06-02 · 54 CVEs total

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CVE-2020-6950 Oracle Fusion Middleware 路径遍历漏洞
CVE-2020-24870 Libraw 缓冲区错误漏洞
CVE-2020-27661 QEMU 数字错误漏洞
CVE-2021-28677 Pillow 输入验证错误漏洞
CVE-2021-28678 Pillow 数据伪造问题漏洞
CVE-2021-25288 Pillow 缓冲区错误漏洞
CVE-2021-25287 Pillow 缓冲区错误漏洞
CVE-2020-22046 FFmpeg 安全漏洞
CVE-2021-3522 GStreamer 缓冲区错误漏洞
CVE-2021-3530 GNU Binutils 安全漏洞

Showing top 20 of 54 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: avahi
Same vendor: n/a
Same weakness: CWE-835

V. Comments for CVE-2021-3468

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