ISC BIND up to 9.11.29/9.16.13/9.17.11 SPNEGO buffer overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.7$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in ISC BIND up to 9.11.29/9.16.13/9.17.11. This vulnerability affects unknown code of the component SPNEGO. Performing a manipulation results in buffer overflow. This vulnerability was named CVE-2021-25216. The attack may be initiated remotely. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in ISC BIND up to 9.11.29/9.16.13/9.17.11 (Domain Name Software). This affects some unknown processing of the component SPNEGO. The manipulation with an unknown input leads to a buffer overflow vulnerability. CWE is classifying the issue as CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was presented 04/29/2021. It is possible to read the advisory at kb.isc.org. This vulnerability is uniquely identified as CVE-2021-25216. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 04/29/2021).

Upgrading to version 9.11.31, 9.16.15 or 9.17.12 eliminates this vulnerability.

Statistical analysis made it clear that VulDB provides the best quality 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: 8.1
VulDB Meta Temp Score: 7.7

VulDB Base Score: 8.1
VulDB Temp Score: 7.7
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: Buffer overflow
CWE: CWE-120 / CWE-119
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 9.11.31/9.16.15/9.17.12

Timelineinfo

01/15/2021 🔍
04/29/2021 +103 days 🔍
04/29/2021 +0 days 🔍
05/02/2021 +3 days 🔍

Sourcesinfo

Vendor: isc.org

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

CVE: CVE-2021-25216 (🔍)
GCVE (CVE): GCVE-0-2021-25216
GCVE (VulDB): GCVE-100-174243

Entryinfo

Created: 04/29/2021 09:04
Updated: 05/02/2021 20:02
Changes: 04/29/2021 09:04 (39), 04/29/2021 09:11 (4), 05/02/2021 19:55 (3), 05/02/2021 20:02 (1)
Complete: 🔍
Cache ID: 216::103

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