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Mageia: 2020-0026 Moderate: OpenSC Memory Leak and Access Issues

Updated opensc packages fix security vulnerabilities: sc_context_create in ctx.c in libopensc in OpenSC 0.19.0 has a memory leak, as demonstrated by a call from eidenv (CVE-2019-6502). . MGASA-2020-0026 - Updated opensc packages fix security vulnerability Publication date: 07 Jan 2020 URL: https://advisories.mageia.org/MGASA-2020-0026.html Type: security Affected Mageia releases: 7 CVE: CVE-2019-6502, CVE-2019-15945, CVE-2019-15946, CVE-2019-19479, CVE-2019-19480, CVE-2019-19481 Updated opensc packages fix security vulnerabilities: sc_context_create in ctx.c in libopensc in OpenSC 0.19.0 has a memory leak, as demonstrated by a call from eidenv (CVE-2019-6502). OpenSC before 0.20.0-rc1 has an out-of-bounds access of an ASN.1 Bitstring in decode_bit_string in libopensc/asn1.c (CVE-2019-15945). OpenSC before 0.20.0-rc1 has an out-of-bounds access of an ASN.1 Octet string in asn1_decode_entry in libopensc/asn1.c (CVE-2019-15946). An issue was discovered in OpenSC through 0.19.0 and 0.20.x through 0.20.0-rc3. libopensc/card-setcos.c has an incorrect read operation during parsing of a SETCOS file attribute (CVE-2019-19479). An issue was discovered in OpenSC through 0.19.0 and 0.20.x through 0.20.0-rc3. libopensc/pkcs15-prkey.c has an incorrect free operation in sc_pkcs15_decode_prkdf_entry (CVE-2019-19480). An issue was discovered in OpenSC through 0.19.0 and 0.20.x through 0.20.0-rc3. libopensc/card-cac1.c mishandles buffer limits for CAC certificates (CVE-2019-19481). The opensc package has been updated to version 0.20.0, which has fixes for these issues and other improvements. References: - https://bugs.mageia.org/show_bug.cgi?id=25975 - https://github.com/OpenSC/OpenSC/releases/tag/0.20.0 - https://www.openwall.com/lists/oss-security/2019/12/29/1 - https://www.cve.org/CVERecord?id=CVE-2019-6502 - https://www.cve.org/CVERecord?id=CVE-2019-15945 - https://www.cve.org/CVERecord?id=CVE-2019-15946 - https://www.cve.org/CVERecord?id=CVE-2019-19479 -https://www.cve.org/CVERecord?id=CVE-2019-19480 - https://www.cve.org/CVERecord?id=CVE-2019-19481 SRPMS: - 7/core/opensc-0.20.0-1.mga7 . Revised opensc updates from MGASA-2020-0026 address memory overflow and boundary-related vulnerabilities released on 07 Jan 2020.. opensc security update, Mageia advisory, memory leakage fix, buffer access issue. . Severity: Important. LinuxSecurity.com Team

Jan 07, 2020 •Important Mageia