ISC BIND up to 9.16.3 rbtdb.c 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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4.7$0-$5k0.00

Summaryinfo

A vulnerability was found in ISC BIND and classified as problematic. Affected by this issue is some unknown functionality of the file rbtdb.c. Executing a manipulation can lead to denial of service. This vulnerability is handled as CVE-2020-8619. The attack can be executed remotely. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic was found in ISC BIND (Domain Name Software). This vulnerability affects an unknown code of the file rbtdb.c. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability. CVE summarizes:

Unless a nameserver is providing authoritative service for one or more zones and at least one zone contains an empty non-terminal entry containing an asterisk ("*") character, this defect cannot be encountered. A would-be attacker who is allowed to change zone content could theoretically introduce such a record in order to exploit this condition to cause denial of service, though we consider the use of this vector unlikely because any such attack would require a significant privilege level and be easily traceable.

The weakness was released 06/17/2020 (Website). The advisory is shared for download at kb.isc.org. This vulnerability was named CVE-2020-8619 since 02/05/2020. The attack can be initiated remotely. The exploitation needs additional levels of successful authentication. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1499.

Upgrading to version 9.11.20 or 9.16.4 eliminates this vulnerability.

Entry connected to this vulnerability is available at VDB-156915. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.9
VulDB Meta Temp Score: 4.8

VulDB Base Score: 4.9
VulDB Temp Score: 4.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

Vendor Base Score (ISC): 4.9
Vendor Vector (ISC): 🔍

NVD Base Score: 4.9
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: 🔍

Physical: No
Local: No
Remote: Yes

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: BIND 9.11.20/9.16.4

Timelineinfo

02/05/2020 🔍
06/17/2020 +133 days 🔍
06/18/2020 +1 days 🔍
10/25/2020 +129 days 🔍

Sourcesinfo

Vendor: isc.org

Advisory: kb.isc.org
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2020-8619 (🔍)
GCVE (CVE): GCVE-0-2020-8619
GCVE (VulDB): GCVE-100-156916
See also: 🔍

Entryinfo

Created: 06/18/2020 11:51
Updated: 10/25/2020 09:21
Changes: 06/18/2020 11:51 (49), 06/18/2020 11:56 (12), 10/25/2020 09:13 (1), 10/25/2020 09:21 (1)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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