Exim dnsdb out-of-bounds

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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3.0$0-$5k0.00

Summaryinfo

A vulnerability was found in Exim. It has been declared as problematic. This affects an unknown part of the component dnsdb. The manipulation results in out-of-bounds. This vulnerability is reported as CVE-2023-42119. The attacker must have access to the local network to execute the attack. No exploit exists.

Detailsinfo

A vulnerability was found in Exim (Mail Server Software) (version now known). It has been classified as problematic. Affected is some unknown processing of the component dnsdb. The manipulation with an unknown input leads to a out-of-bounds vulnerability. CWE is classifying the issue as CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. This is going to have an impact on confidentiality. CVE summarizes:

Exim dnsdb Out-Of-Bounds Read Information Disclosure Vulnerability. This vulnerability allows network-adjacent attackers to disclose sensitive information on affected installations of Exim. Authentication is not required to exploit this vulnerability. The specific flaw exists within the smtp service, which listens on TCP port 25 by default. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the service account. . Was ZDI-CAN-17643.

The weakness was disclosed 09/28/2023 as ZDI-23-1473. The advisory is shared for download at zerodayinitiative.com. This vulnerability is traded as CVE-2023-42119 since 09/06/2023. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 209857 (Debian dla-3938 : exim4 - security update), which helps to determine the existence of the flaw in a target environment.

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

The vulnerability is also documented in the vulnerability database at Tenable (209857). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.1
VulDB Meta Temp Score: 3.0

VulDB Base Score: 3.1
VulDB Temp Score: 3.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 3.1
CNA Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Out-of-bounds
CWE: CWE-125 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 209857
Nessus Name: Debian dla-3938 : exim4 - security update

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

09/06/2023 🔍
09/28/2023 +22 days 🔍
09/28/2023 +0 days 🔍
10/29/2024 +397 days 🔍

Sourcesinfo

Advisory: ZDI-23-1473
Status: Not defined

CVE: CVE-2023-42119 (🔍)
GCVE (CVE): GCVE-0-2023-42119
GCVE (VulDB): GCVE-100-240792

Entryinfo

Created: 09/28/2023 07:49
Updated: 10/29/2024 12:58
Changes: 09/28/2023 07:49 (17), 09/28/2023 07:50 (20), 09/19/2024 11:45 (26), 10/29/2024 12:58 (2)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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