Avahi 0.7 avahi-daemon Network Packet denial of service

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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3.2$0-$5k0.00

Summaryinfo

A vulnerability was found in Avahi 0.7. It has been classified as problematic. This vulnerability affects unknown code of the component avahi-daemon. Performing a manipulation as part of Network Packet results in denial of service. This vulnerability is known as CVE-2018-1000845. No exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Avahi 0.7. It has been classified as problematic. This affects an unknown code block of the component avahi-daemon. The manipulation as part of a Network Packet leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on availability. The summary by CVE is:

Avahi version 0.7 contains a Incorrect Access Control vulnerability in avahi-daemon that can result in Traffic reflection and amplification for DDoS attacks.. This attack appear to be exploitable via unicast IP network packet with spoofed source address.

The bug was discovered 11/09/2018. The weakness was published 12/20/2018 (Website). It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2018-1000845 since 12/20/2018. The technical details are unknown and an exploit is not publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 41 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 121417 (SUSE SLED12 / SLES12 Security Update : avahi (SUSE-SU-2019:0179-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 197360 (Ubuntu Security Notification for Avahi Vulnerabilities (USN-3876-1)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 2 months after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (121417). Similar entry is available at VDB-100759. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.3
VulDB Meta Temp Score: 3.2

VulDB Base Score: 3.3
VulDB Temp Score: 3.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 121417
Nessus Name: SUSE SLED12 / SLES12 Security Update : avahi (SUSE-SU-2019:0179-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Timelineinfo

11/09/2018 🔍
12/20/2018 +41 days 🔍
12/20/2018 +0 days 🔍
12/20/2018 +0 days 🔍
12/21/2018 +1 days 🔍
01/25/2019 +35 days 🔍
01/28/2019 +3 days 🔍
06/20/2023 +1604 days 🔍

Sourcesinfo

Advisory: 203
Status: Confirmed

CVE: CVE-2018-1000845 (🔍)
GCVE (CVE): GCVE-0-2018-1000845
GCVE (VulDB): GCVE-100-128175
See also: 🔍

Entryinfo

Created: 12/21/2018 10:41
Updated: 06/20/2023 09:23
Changes: 12/21/2018 10:41 (49), 04/22/2020 14:06 (7), 06/20/2023 09:23 (2)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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