Unbound up to 1.19.0 DNSSEC Validator denial of service

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.0$0-$5k0.00

A vulnerability, which was classified as problematic, was found in Unbound up to 1.19.0. This affects an unknown code block of the component DNSSEC Validator. The manipulation with an unknown input 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 weakness was disclosed 02/13/2024. It is possible to read the advisory at seclists.org. This vulnerability is uniquely identified as CVE-2023-50387 since 12/07/2023. The technical details are unknown and an exploit is not publicly available.

Upgrading to version 1.9.1 eliminates this vulnerability. The upgrade is hosted for download at nlnetlabs.nl.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔒
VulDB CVSS-BT Score: 🔒
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.0
VulDB Meta Temp Score: 5.0

VulDB Base Score: 2.6
VulDB Temp Score: 2.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔒

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: 🔒

Local: No
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Unbound 1.9.1

Timelineinfo

12/07/2023 CVE reserved
02/13/2024 +68 days Advisory disclosed
02/13/2024 +0 days VulDB entry created
03/04/2024 +20 days VulDB entry last update

Sourcesinfo

Advisory: DLA 3736-1
Status: Confirmed

CVE: CVE-2023-50387 (🔒)

Entryinfo

Created: 02/13/2024 18:14
Updated: 03/04/2024 09:26
Changes: 02/13/2024 18:14 (39), 02/15/2024 08:59 (1), 03/04/2024 09:24 (2), 03/04/2024 09:26 (11)
Complete: 🔍

Discussion

Anonymous User 👤 (+0)
2 months ago
Good morning,
could you please align to the official cpe of NVD Nist "nlnetlabs:unbound"?
We would appreciate it very much.
Best Regards,
TEAM CERT
VulDB Community Team 👨‍💻2 months ago
Thank you, we have just aligned the CPE.

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