CVE-2021-3502
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I. Basic Information for CVE-2021-3502
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
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: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
可达断言
Source: NVD (National Vulnerability Database)
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
| # | POC Description | Source Link | Shenlong Link |
|---|
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- https://bugzilla.redhat.com/show_bug.cgi?id=1946914x_refsource_MISC
- https://github.com/lathiat/avahi/issues/338x_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2021-3502
Same Patch Batch · n/a · 2021-05-07 · 42 CVEs total
| CVE-2021-27570 | Emote Remote Mouse 访问控制错误漏洞 | |
| CVE-2021-26123 | LivingLogic XIST4C 跨站脚本漏洞 | |
| CVE-2021-21984 | VMware vRealize Business for Cloud 命令注入漏洞 | |
| CVE-2020-14009 | Proofpoint Enterprise Protection 安全漏洞 | |
| CVE-2021-22675 | Texas Instruments SimpleLink 输入验证错误漏洞 | |
| CVE-2021-22679 | Texas Instruments SimpleLink 输入验证错误漏洞 | |
| CVE-2021-22671 | Texas Instruments SimpleLink 输入验证错误漏洞 | |
| CVE-2021-22673 | Texas Instruments SimpleLink 缓冲区错误漏洞 | |
| CVE-2021-27437 | Advantech WISE-PaaS/RMM 信任管理问题漏洞 | |
| CVE-2021-22677 | Texas Instruments SimpleLink 输入验证错误漏洞 | |
| 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
- CVE-2026-34933
Avahi: Reachable assertion in `transport_flags_from_domain() - CVE-2026-24401
Avahi has Uncontrolled Recursion in lookup_handle_cname func - CVE-2025-68471
Avahi has a reachable assertion in lookup_start - CVE-2025-68468
Avahi has a reachable assertion in lookup_multicast_callback - CVE-2025-68276
Avahi has a reachable assertion in avahi_wide_area_scan_cach
Same vendor: n/a
- CVE-2026-8276
bettercap MySQL Server mysql_server.go integer coercion - CVE-2026-8275
bettercap zerogod IPP Service zerogod_ipp_primitives.go ippR - CVE-2026-8270
Open5GS SMF ogs_nas_parse_qos_rules denial of service - CVE-2026-8269
Open5GS SMF smf_nsmf_handle_create_sm_context denial of serv - CVE-2026-8268
Open5GS SMF OpenAPI_list_create denial of service
Same weakness: CWE-617
- CVE-2026-8257
WebAssembly Binaryen BrOn wasm-ir-builder.cpp makeBrOn asser - CVE-2026-41584
ZEBRA: rk Identity Point Panic in Transaction Verification - CVE-2026-20450
MediaTek Chipsets 安全漏洞 - CVE-2026-41485
Kyverno Controller Denial of Service via forEach Mutation Pa - CVE-2026-34067
nimiq-transaction vulnerable to panic via `HistoryTreeProof`
V. Comments for CVE-2021-3502
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