CVE-2023-42119— Exim dnsdb Out-Of-Bounds Read Information Disclosure Vulnerability
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I. Basic Information for CVE-2023-42119
Vulnerability Information
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Vulnerability Title
Exim dnsdb Out-Of-Bounds Read Information Disclosure Vulnerability
Source: NVD (National Vulnerability Database)
Vulnerability Description
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.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
跨界内存读
Source: NVD (National Vulnerability Database)
Vulnerability Title
Exim 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Exim是一个运行于Unix系统中的开源消息传送代理（MTA），它主要负责邮件的路由、转发和投递。 Exim存在安全漏洞，该漏洞源于缺乏对用户提供的数据进行正确验证。攻击者利用该漏洞可以执行任意代码。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2023-42119
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Same Patch Batch · Exim · 2024-05-03 · 6 CVEs total
| CVE-2023-42114 | Exim NTLM Challenge Out-Of-Bounds Read Information Disclosure Vulnerability | |
| CVE-2023-42118 | Exim libspf2 Integer Underflow Remote Code Execution Vulnerability | |
| CVE-2023-42116 | Exim SMTP Challenge Stack-based Buffer Overflow Remote Code Execution Vulnerability | |
| CVE-2023-42117 | Exim Improper Neutralization of Special Elements Remote Code Execution Vulnerability | |
| CVE-2023-42115 | Exim AUTH Out-Of-Bounds Write Remote Code Execution Vulnerability |
IV. Related Vulnerabilities
Same weakness: CWE-125
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Out-of-bounds read in urldecode() on NetBSD - CVE-2026-8186
Open5GS NF client.c ogs_sbi_client_send_via_scp_or_sepp out- - CVE-2026-3508
ASUS System Control Interface 缓冲区错误漏洞
V. Comments for CVE-2023-42119
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