USN-8147-1

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USN-8147-1

Summary: libarchive vulnerabilities

Details: It was discovered that libarchive incorrectly handled certain archive files. An attacker could possibly use this issue to access sensitive information. This issue only affected Ubuntu 14.04 LTS. (CVE-2019-19221) It was discovered that libarchive incorrectly handled certain RAR archive files. If a user or automated system were tricked into processing a specially crafted RAR archive, an attacker could possibly use this issue to cause libarchive to crash, resulting in a denial of service, or execute arbitrary code. This issue only affected Ubuntu 14.04 LTS, Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. (CVE-2024-20696) It was discovered that libarchive incorrectly handled certain RAR archive files. An attacker could possibly use this issue to execute arbitrary code or cause a denial of service. This issue only affected Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. (CVE-2025-5914) It was discovered that libarchive incorrectly handled certain WARC archive files. If a user or automated system were tricked into processing a specially crafted WARC archive, an attacker could possibly use this issue to cause libarchive to crash, resulting in a denial of service. This issue only affected Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. (CVE-2025-5916) It was discovered that libarchive incorrectly handled certain file names when handling prefixes and suffixes. An attacker could possibly use this issue to cause libarchive to crash, resulting in a denial of service. This issue only affected Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. (CVE-2025-5917) It was discovered that libarchive could read past the end of file streams when processing input to bsdtar. An attacker could possibly use this issue to cause memory corruption or a denial of service. (CVE-2025-5918) It was discovered that libarchive incorrectly handled certain TAR archive files. If a user or automated system were tricked into processing a specially crafted TAR archive, an attacker could possibly use this issue to cause libarchive to crash, resulting in a denial of service, or execute arbitrary code. This issue only affected Ubuntu 14.04 LTS, Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. (CVE-2025-25724) HyungJung Joo discovered that libarchive did not properly limit memory allocation when processing substitution rules in bsdtar. An attacker could possibly use this issue to cause excessive memory consumption, leading to a denial of service. (CVE-2025-60753) Elhanan Haenel discovered that libarchive could enter an infinite loop when processing crafted RAR5 archives. An attacker could possibly use this issue to cause excessive CPU consumption, leading to a denial of service. This issue only affected Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, Ubuntu 24.04 LTS and Ubuntu 25.10. (CVE-2026-4111)

References: https://ubuntu.com/security/notices/USN-8147-1, https://ubuntu.com/security/CVE-2019-19221, https://ubuntu.com/security/CVE-2024-20696, https://ubuntu.com/security/CVE-2025-5914, https://ubuntu.com/security/CVE-2025-5916, https://ubuntu.com/security/CVE-2025-5917, https://ubuntu.com/security/CVE-2025-5918, https://ubuntu.com/security/CVE-2025-25724, https://ubuntu.com/security/CVE-2025-60753, https://ubuntu.com/security/CVE-2026-4111