USN-3225-1

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USN-3225-1

Summary: libarchive vulnerabilities

Details: It was discovered that libarchive incorrectly handled hardlink entries when extracting archives. A remote attacker could possibly use this issue to overwrite arbitrary files. (CVE-2016-5418) Christian Wressnegger, Alwin Maier, and Fabian Yamaguchi discovered that libarchive incorrectly handled filename lengths when writing ISO9660 archives. A remote attacker could use this issue to cause libarchive to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only applied to Ubuntu 12.04 LTS, Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. (CVE-2016-6250) Alexander Cherepanov discovered that libarchive incorrectly handled recursive decompressions. A remote attacker could possibly use this issue to cause libarchive to hang, resulting in a denial of service. This issue only applied to Ubuntu 12.04 LTS, Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. (CVE-2016-7166) It was discovered that libarchive incorrectly handled non-printable multibyte characters in filenames. A remote attacker could possibly use this issue to cause libarchive to crash, resulting in a denial of service. (CVE-2016-8687) It was discovered that libarchive incorrectly handled line sizes when extracting certain archives. A remote attacker could possibly use this issue to cause libarchive to crash, resulting in a denial of service. (CVE-2016-8688) It was discovered that libarchive incorrectly handled multiple EmptyStream attributes when extracting certain 7zip archives. A remote attacker could possibly use this issue to cause libarchive to crash, resulting in a denial of service. (CVE-2016-8689) Jakub Jirasek discovered that libarchive incorrectly handled memory when extracting certain archives. A remote attacker could possibly use this issue to cause libarchive to crash, resulting in a denial of service. (CVE-2017-5601)

References: https://ubuntu.com/security/notices/USN-3225-1, https://ubuntu.com/security/CVE-2016-5418, https://ubuntu.com/security/CVE-2016-6250, https://ubuntu.com/security/CVE-2016-7166, https://ubuntu.com/security/CVE-2016-8687, https://ubuntu.com/security/CVE-2016-8688, https://ubuntu.com/security/CVE-2016-8689, https://ubuntu.com/security/CVE-2017-5601