Unbound up to 1.10.0 DNS Answer Infinite Loop infinite loop

CVSS Meta Temp Score
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CTI Interest Score
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6.1$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Unbound up to 1.10.0. Affected is an unknown function of the component DNS Answer Handler. The manipulation as part of Infinite Loop leads to infinite loop. This vulnerability is traded as CVE-2020-12663. It is possible to initiate the attack remotely. There is no exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Unbound up to 1.10.0. It has been rated as problematic. This issue affects an unknown functionality of the component DNS Answer Handler. The manipulation as part of a Infinite Loop leads to a infinite loop vulnerability. Using CWE to declare the problem leads to CWE-835. The product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop. Impacted is availability. The summary by CVE is:

Unbound before 1.10.1 has an infinite loop via malformed DNS answers received from upstream servers.

The weakness was shared 05/19/2020 (oss-sec). The advisory is shared at openwall.com. The identification of this vulnerability is CVE-2020-12663 since 05/05/2020. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1499 for this issue.

Upgrading to version 1.10.1 eliminates this vulnerability.

The entry VDB-155428 is related to this item. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
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: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Infinite loop
CWE: CWE-835 / 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: Unbound 1.10.1

Timelineinfo

05/05/2020 🔍
05/19/2020 +14 days 🔍
05/20/2020 +1 days 🔍
05/20/2020 +0 days 🔍

Sourcesinfo

Advisory: openwall.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2020-12663 (🔍)
GCVE (CVE): GCVE-0-2020-12663
GCVE (VulDB): GCVE-100-155429
See also: 🔍

Entryinfo

Created: 05/20/2020 06:22
Updated: 05/20/2020 06:27
Changes: 05/20/2020 06:22 (41), 05/20/2020 06:27 (17)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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