An update for libspf2 is now available for openEuler-24.03-LTS-SP1 Security Advisory openeuler-security@openeuler.org openEuler security committee openEuler-SA-2025-1077 Final 1.0 1.0 2025-01-24 Initial 2025-01-24 2025-01-24 openEuler SA Tool V1.0 2025-01-24 libspf2 security update An update for libspf2 is now available for openEuler-24.03-LTS-SP1 libspf2 is an implementation of the SPF (Sender Policy Framework) specification as found at: http://www.ietf.org/internet-drafts/draft-mengwong-spf-00.txt SPF allows email systems to check SPF DNS records and make sure that an email is authorized by the administrator of the domain name that it is coming from. This prevents email forgery, commonly used by spammers, scammers, and email viruses/worms. Security Fix(es): 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.(CVE-2023-42118) An update for libspf2 is now available for master/openEuler-22.03-LTS-Next/openEuler-22.03-LTS-SP2/openEuler-22.03-LTS-SP3/openEuler-24.03-LTS/openEuler-24.03-LTS-SP1/openEuler-24.03-LTS-Next/openEuler-22.03-LTS-SP4. openEuler Security has rated this update as having a security impact of high. A Common Vunlnerability Scoring System(CVSS)base score,which gives a detailed severity rating, is available for each vulnerability from the CVElink(s) in the References section. High libspf2 https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2025-1077 https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2023-42118 https://nvd.nist.gov/vuln/detail/CVE-2023-42118 openEuler-24.03-LTS-SP1 libspf2-1.2.11-2.oe2403sp1.aarch64.rpm libspf2-debuginfo-1.2.11-2.oe2403sp1.aarch64.rpm libspf2-debugsource-1.2.11-2.oe2403sp1.aarch64.rpm libspf2-devel-1.2.11-2.oe2403sp1.aarch64.rpm libspf2-progs-1.2.11-2.oe2403sp1.aarch64.rpm perl-Mail-SPF_XS-1.2.11-2.oe2403sp1.aarch64.rpm libspf2-1.2.11-2.oe2403sp1.src.rpm libspf2-1.2.11-2.oe2403sp1.x86_64.rpm libspf2-debuginfo-1.2.11-2.oe2403sp1.x86_64.rpm libspf2-debugsource-1.2.11-2.oe2403sp1.x86_64.rpm libspf2-devel-1.2.11-2.oe2403sp1.x86_64.rpm libspf2-progs-1.2.11-2.oe2403sp1.x86_64.rpm perl-Mail-SPF_XS-1.2.11-2.oe2403sp1.x86_64.rpm libspf2-apidocs-1.2.11-2.oe2403sp1.noarch.rpm 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. 2025-01-24 CVE-2023-42118 openEuler-24.03-LTS-SP1 High 7.5 AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H libspf2 security update 2025-01-24 https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2025-1077