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RedhatCVE-2021-3502

HistoryMay 07, 2021 - 12:15 p.m.

CVE-2021-3502

2021-05-0712:15:07

CWE-617

redhat

web.nvd.nist.gov

147

avahi

vulnerability

assertion

service availability

cve-2021-3502

nvd

CVSS2

2.1

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:L/AC:L/Au:N/C:N/I:N/A:P

CVSS3

5.5

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

AI Score

5.3

Confidence

High

EPSS

Percentile

5.1%

JSON

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.

Affected configurations

Nvd

Vulners

Node

avahiavahiMatch0.8-5

VendorProductVersionCPE
avahiavahi0.8-5cpe:2.3:a:avahi:avahi:0.8-5:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
avahi	avahi	0.8-5	cpe:2.3:a:avahi:avahi:0.8-5:::::::*

CNA Affected

[
  {
    "product": "avahi",
    "vendor": "n/a",
    "versions": [
      {
        "status": "affected",
        "version": "0.8-5"
      }
    ]
  }
]