CVE-2023-42118

Katalog CVE

CVSS 8.8 · High EPSS 19,0%

Kerentanan Integer Underflow (Wrap or Wraparound) pada libspf2 project libspf2. Skor CVSS 3.1 8.8 (High) menurut NVD.

Deskripsi (NVD)

Exim libspf2 Integer Underflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Exim libspf2. Authentication is not required to exploit this vulnerability. The specific flaw exists within the parsing of SPF macros. When parsing SPF macros, the process does not properly validate user-supplied data, which can result in an integer underflow before writing to memory. An attacker can leverage this vulnerability to execute code in the context of the service account. . Was ZDI-CAN-17578.

Rincian

Terbit di NVD

3 Mei 2024

Terakhir diubah

17 Juni 2026

Status NVD

Analyzed

CVSS 3.1

8.8 (High), sumber NVD
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-191: Integer Underflow (Wrap or Wraparound)

EPSS (30 hari)

19,0% peluang dieksploitasi; lebih tinggi dari 97,2% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://www.zerodayinitiative.com/advisories/ZDI-23-1472/ advisory pihak ketiga
• http://www.openwall.com/lists/oss-security/2025/03/28/1 mailing list