An update for clamav is now available for openEuler-22.03-LTS-SP3 Security Advisory openeuler-security@openeuler.org openEuler security committee openEuler-SA-2025-1696 Final 1.0 1.0 2025-06-27 Initial 2025-06-27 2025-06-27 openEuler SA Tool V1.0 2025-06-27 clamav security update An update for clamav is now available for openEuler-22.03-LTS-SP3 Clam AntiVirus is an anti-virus toolkit for UNIX. The main purpose of this software is the integration with mail servers (attachment scanning). The package provides a flexible and scalable multi-threaded daemon, a command line scanner, and a tool for automatic updating via Internet. The programs are based on a shared library distributed with the Clam AntiVirus package, which you can use with your own software. The virus database is based on the virus database from OpenAntiVirus, but contains additional signatures (including signatures for popular polymorphic viruses, too) and is KEPT UP TO DATE. Security Fix(es): A vulnerability in the PDF scanning processes of ClamAV could allow an unauthenticated, remote attacker to cause a buffer overflow condition, cause a denial of service (DoS) condition, or execute arbitrary code on an affected device. This vulnerability exists because memory buffers are allocated incorrectly when PDF files are processed. An attacker could exploit this vulnerability by submitting a crafted PDF file to be scanned by ClamAV on an affected device. A successful exploit could allow the attacker to trigger a buffer overflow, likely resulting in the termination of the ClamAV scanning process and a DoS condition on the affected software. Although unproven, there is also a possibility that an attacker could leverage the buffer overflow to execute arbitrary code with the privileges of the ClamAV process.(CVE-2025-20260) An update for clamav is now available for master/openEuler-20.03-LTS-SP4/openEuler-22.03-LTS-SP3/openEuler-22.03-LTS-SP4/openEuler-24.03-LTS/openEuler-24.03-LTS-Next/openEuler-24.03-LTS-SP1/openEuler-24.03-LTS-SP2. openEuler Security has rated this update as having a security impact of critical. 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. Critical clamav https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2025-1696 https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2025-20260 https://nvd.nist.gov/vuln/detail/CVE-2025-20260 openEuler-22.03-LTS-SP3 clamav-1.0.9-2.oe2203sp3.aarch64.rpm clamav-debuginfo-1.0.9-2.oe2203sp3.aarch64.rpm clamav-debugsource-1.0.9-2.oe2203sp3.aarch64.rpm clamav-devel-1.0.9-2.oe2203sp3.aarch64.rpm clamav-milter-1.0.9-2.oe2203sp3.aarch64.rpm clamav-update-1.0.9-2.oe2203sp3.aarch64.rpm clamd-1.0.9-2.oe2203sp3.aarch64.rpm clamav-1.0.9-2.oe2203sp3.src.rpm clamav-1.0.9-2.oe2203sp3.x86_64.rpm clamav-debuginfo-1.0.9-2.oe2203sp3.x86_64.rpm clamav-debugsource-1.0.9-2.oe2203sp3.x86_64.rpm clamav-devel-1.0.9-2.oe2203sp3.x86_64.rpm clamav-milter-1.0.9-2.oe2203sp3.x86_64.rpm clamav-update-1.0.9-2.oe2203sp3.x86_64.rpm clamd-1.0.9-2.oe2203sp3.x86_64.rpm clamav-data-1.0.9-2.oe2203sp3.noarch.rpm clamav-filesystem-1.0.9-2.oe2203sp3.noarch.rpm clamav-help-1.0.9-2.oe2203sp3.noarch.rpm A vulnerability in the PDF scanning processes of ClamAV could allow an unauthenticated, remote attacker to cause a buffer overflow condition, cause a denial of service (DoS) condition, or execute arbitrary code on an affected device. This vulnerability exists because memory buffers are allocated incorrectly when PDF files are processed. An attacker could exploit this vulnerability by submitting a crafted PDF file to be scanned by ClamAV on an affected device. A successful exploit could allow the attacker to trigger a buffer overflow, likely resulting in the termination of the ClamAV scanning process and a DoS condition on the affected software. Although unproven, there is also a possibility that an attacker could leverage the buffer overflow to execute arbitrary code with the privileges of the ClamAV process. 2025-06-27 CVE-2025-20260 openEuler-22.03-LTS-SP3 Critical 9.8 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H clamav security update 2025-06-27 https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2025-1696