CVSS: 5.3EPSS: 8%CPEs: 7EXPL: 1CVE-2023-51766 – Debian Security Advisory 5597-1
https://notcve.org/view.php?id=CVE-2023-51766
24 Dec 2023 — Exim before 4.97.1 allows SMTP smuggling in certain PIPELINING/CHUNKING configurations. Remote attackers can use a published exploitation technique to inject e-mail messages with a spoofed MAIL FROM address, allowing bypass of an SPF protection mechanism. This occurs because Exim supports <LF>.<CR><LF> but some other popular e-mail servers do not. Exim hasta 4.97 permite el contrabando SMTP en ciertas configuraciones. • http://www.openwall.com/lists/oss-security/2023/12/24/1 • CWE-345: Insufficient Verification of Data Authenticity •
CVSS: 3.7EPSS: 0%CPEs: 1EXPL: 0CVE-2023-42114 – Exim NTLM Challenge Out-Of-Bounds Read Information Disclosure Vulnerability
https://notcve.org/view.php?id=CVE-2023-42114
27 Sep 2023 — Exim NTLM Challenge Out-Of-Bounds Read Information Disclosure Vulnerability. This vulnerability allows remote attackers to disclose sensitive information on affected installations of Exim. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of NTLM challenge requests. 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 data structure. • https://www.zerodayinitiative.com/advisories/ZDI-23-1468 • CWE-125: Out-of-bounds Read •
CVSS: 10.0EPSS: 52%CPEs: 1EXPL: 2CVE-2023-42115 – Exim AUTH Out-Of-Bounds Write Remote Code Execution Vulnerability
https://notcve.org/view.php?id=CVE-2023-42115
27 Sep 2023 — Exim AUTH Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code 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 write past the end of a buffer. • https://github.com/kirinse/cve-2023-42115 • CWE-787: Out-of-bounds Write •
CVSS: 8.1EPSS: 3%CPEs: 1EXPL: 0CVE-2023-42116 – Exim SMTP Challenge Stack-based Buffer Overflow Remote Code Execution Vulnerability
https://notcve.org/view.php?id=CVE-2023-42116
27 Sep 2023 — Exim SMTP Challenge Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Exim. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of NTLM challenge requests. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. • https://www.zerodayinitiative.com/advisories/ZDI-23-1470 • CWE-121: Stack-based Buffer Overflow •
CVSS: 7.8EPSS: 3%CPEs: 3EXPL: 1CVE-2022-37451
https://notcve.org/view.php?id=CVE-2022-37451
06 Aug 2022 — Exim before 4.96 has an invalid free in pam_converse in auths/call_pam.c because store_free is not used after store_malloc. Exim versiones anteriores a 4.96, presenta una liberación no válida en el archivo pam_converse en auths/call_pam.c porque store_free no es usada después de store_malloc • https://cwe.mitre.org/data/definitions/762.html • CWE-763: Release of Invalid Pointer or Reference •