MGASA-2018-0455

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MGASA-2018-0455

Summary: Updated libmspack/cabextract packages fix security vulnerabilities

Details: Hanno Böck discovered that libmspack incorrectly handled certain CHM files. An attacker could possibly use this issue to cause a denial of service (CVE-2018-14679, CVE-2018-14680). Jakub Wilk discovered that libmspack incorrectly handled certain KWAJ files. An attacker could possibly use this issue to execute arbitrary code (CVE-2018-14681). Dmitry Glavatskikh discovered that libmspack incorrectly certain CHM files. An attacker could possibly use this issue to execute arbitrary code (CVE-2018-14682). If a CAB file has a Quantum-compressed datablock with exactly 38912 compressed bytes, cabextract would write exactly one byte beyond its input buffer (CVE-2018-18584). libmspack didn't reject blank CHM filenames that are blank because they have embedded null bytes, not just because they are zero-length (CVE-2018-18585). chmextract didn't protect from absolute/relative pathnames in CHM files (CVE-2018-18586).

References: https://advisories.mageia.org/MGASA-2018-0455.html, https://bugs.mageia.org/show_bug.cgi?id=23365, https://usn.ubuntu.com/3728-1/, https://www.openwall.com/lists/oss-security/2018/10/22/1, https://www.openwall.com/lists/oss-security/2018/10/23/11