Nlnet Labs nsd 4.2.0 nsd-checkzone dname.c dname_concatenate memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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8.5$0-$5k0.00

A vulnerability was found in Nlnet Labs nsd 4.2.0 (Domain Name Software). It has been classified as critical. This affects the function dname_concatenate of the file dname.c of the component nsd-checkzone. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

nsd-checkzone in NLnet Labs NSD 4.2.0 has a Stack-based Buffer Overflow in the dname_concatenate() function in dname.c.

The weakness was released 07/03/2019 (Website). The advisory is shared at lists.fedoraproject.org. This vulnerability is uniquely identified as CVE-2019-13207 since 07/03/2019. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details are known, but no exploit is available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Productinfo

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Vendor

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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: 8.5
VulDB Meta Temp Score: 8.5

VulDB Base Score: 7.3
VulDB Temp Score: 7.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

07/03/2019 🔍
07/03/2019 +0 days 🔍
07/04/2019 +1 days 🔍
10/17/2023 +1566 days 🔍

Sourcesinfo

Advisory: 20
Status: Not defined

CVE: CVE-2019-13207 (🔍)

Entryinfo

Created: 07/04/2019 11:16 AM
Updated: 10/17/2023 08:59 AM
Changes: 07/04/2019 11:16 AM (56), 06/30/2020 08:32 PM (1), 10/17/2023 08:58 AM (3), 10/17/2023 08:59 AM (1)
Complete: 🔍
Cache ID: 44:C76:40

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