ALAS2023-2025-1081

A vulnerability in Universal Disk Format (UDF) processing of ClamAV could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device.

This vulnerability is due to a memory overread during UDF file scanning. An attacker could exploit this vulnerability by submitting a crafted file containing UDF content to be scanned by ClamAV on an affected device. A successful exploit could allow the attacker to terminate the ClamAV scanning process, resulting in a DoS condition on the affected software.
For a description of this vulnerability, see the . (CVE-2025-20234)

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)

aarch64:
    clamd1.4-debuginfo-1.4.3-1.amzn2023.0.1.aarch64
    clamav1.4-lib-debuginfo-1.4.3-1.amzn2023.0.1.aarch64
    clamav1.4-devel-1.4.3-1.amzn2023.0.1.aarch64
    clamav1.4-1.4.3-1.amzn2023.0.1.aarch64
    clamav1.4-milter-debuginfo-1.4.3-1.amzn2023.0.1.aarch64
    clamav1.4-freshclam-1.4.3-1.amzn2023.0.1.aarch64
    clamav1.4-debuginfo-1.4.3-1.amzn2023.0.1.aarch64
    clamav1.4-milter-1.4.3-1.amzn2023.0.1.aarch64
    clamav1.4-freshclam-debuginfo-1.4.3-1.amzn2023.0.1.aarch64
    clamd1.4-1.4.3-1.amzn2023.0.1.aarch64
    clamav1.4-lib-1.4.3-1.amzn2023.0.1.aarch64
    clamav1.4-debugsource-1.4.3-1.amzn2023.0.1.aarch64

noarch:
    clamav1.4-data-1.4.3-1.amzn2023.0.1.noarch
    clamav1.4-doc-1.4.3-1.amzn2023.0.1.noarch
    clamav1.4-filesystem-1.4.3-1.amzn2023.0.1.noarch

src:
    clamav1.4-1.4.3-1.amzn2023.0.1.src

x86_64:
    clamav1.4-lib-debuginfo-1.4.3-1.amzn2023.0.1.x86_64
    clamav1.4-freshclam-debuginfo-1.4.3-1.amzn2023.0.1.x86_64
    clamav1.4-devel-1.4.3-1.amzn2023.0.1.x86_64
    clamav1.4-freshclam-1.4.3-1.amzn2023.0.1.x86_64
    clamav1.4-debuginfo-1.4.3-1.amzn2023.0.1.x86_64
    clamav1.4-milter-debuginfo-1.4.3-1.amzn2023.0.1.x86_64
    clamd1.4-debuginfo-1.4.3-1.amzn2023.0.1.x86_64
    clamav1.4-1.4.3-1.amzn2023.0.1.x86_64
    clamav1.4-milter-1.4.3-1.amzn2023.0.1.x86_64
    clamd1.4-1.4.3-1.amzn2023.0.1.x86_64
    clamav1.4-debugsource-1.4.3-1.amzn2023.0.1.x86_64
    clamav1.4-lib-1.4.3-1.amzn2023.0.1.x86_64