{"id":"CVE-2018-20673","aliases":["ALSA-2021:4386","AZL-41601","CLSA-2022-1646060667","DEBIAN-CVE-2018-20673","EUVD-2018-13224","GHSA-jx5v-cp2v-88f2","RHSA-2021:4386","RLSA-2021:4386","ROOT-OS-DEBIAN-12-CVE-2018-20673","UBUNTU-CVE-2018-20673"],"status":"published","title":"The demangle_template function in cplus-dem.c in GNU libiberty, as distributed in GNU Binutils 2...","description":"The demangle_template function in cplus-dem.c in GNU libiberty, as distributed in GNU Binutils 2.31.1, contains an integer overflow vulnerability (for \"Create an array for saving the template argument values\") that can trigger a heap-based buffer overflow, as demonstrated by nm.","severity":{"version":"3.0","score":5.5,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.01637,"percentile":0.76493,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-190","CWE-787"],"published":"2019-01-04T17:00:00Z","modified":"2026-10-29T11:01:28Z","fixes":[{"ecosystem":"AlmaLinux:8","package":"cpp","fixed_in":["8.5.0-3.el8.alma"],"sources":["osv"]},{"ecosystem":"AlmaLinux:8","package":"gcc","fixed_in":["8.5.0-3.el8.alma"],"sources":["osv"]},{"ecosystem":"AlmaLinux:8","package":"gcc-c++","fixed_in":["8.5.0-3.el8.alma"],"sources":["osv"]},{"ecosystem":"AlmaLinux:8","package":"gcc-gdb-plugin","fixed_in":["8.5.0-3.el8.alma"],"sources":["osv"]},{"ecosystem":"AlmaLinux:8","package":"gcc-gfortran","fixed_in":["8.5.0-3.el8.alma"],"sources":["osv"]},{"ecosystem":"AlmaLinux:8","package":"gcc-offload-nvptx","fixed_in":["8.5.0-3.el8.alma"],"sources":["osv"]},{"ecosystem":"AlmaLinux:8","package":"gcc-plugin-devel","fixed_in":["8.5.0-3.el8.alma"],"sources":["osv"]},{"ecosystem":"AlmaLinux:8","package":"libitm-devel","fixed_in":["8.5.0-3.el8.alma"],"sources":["osv"]},{"ecosystem":"AlmaLinux:8","package":"libquadmath-devel","fixed_in":["8.5.0-3.el8.alma"],"sources":["osv"]},{"ecosystem":"AlmaLinux:8","package":"libstdc++-devel","fixed_in":["8.5.0-3.el8.alma"],"sources":["osv"]},{"ecosystem":"AlmaLinux:8","package":"libstdc++-docs","fixed_in":["8.5.0-3.el8.alma"],"sources":["osv"]},{"ecosystem":"AlmaLinux:8","package":"libstdc++-static","fixed_in":["8.5.0-3.el8.alma"],"sources":["osv"]},{"ecosystem":"Azure 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demangle_template function in cplus-dem.c in GNU libiberty, as distributed in GNU Binutils 2.31.1, contains an integer overflow vulnerability (for \"Create an array for saving the template argument values\") that can trigger a heap-based buffer overflow, as demonstrated by nm.","status":"published","published":"2019-01-04T17:00:00Z","modified":"2024-08-05T12:05:17.789Z","updated_at":"2026-11-02T14:35:00.237825Z"}],"euvd":[{"id":"EUVD-2018-13224","description":"The demangle_template function in cplus-dem.c in GNU libiberty, as distributed in GNU Binutils 2.31.1, contains an integer overflow vulnerability (for \"Create an array for saving the template argument values\") that can trigger a heap-based buffer overflow, as demonstrated by nm.","status":"published","published":"2019-01-04T17:00:00Z","modified":"2024-08-05T12:05:17Z","updated_at":"2026-11-03T02:39:30.323824Z"}],"ghsa":[{"id":"GHSA-jx5v-cp2v-88f2","title":"The demangle_template function in cplus-dem.c in GNU libiberty, as distributed in GNU Binutils 2...","description":"The demangle_template function in cplus-dem.c in GNU libiberty, as distributed in GNU Binutils 2.31.1, contains an integer overflow vulnerability (for \"Create an array for saving the template argument values\") that can trigger a heap-based buffer overflow, as demonstrated by nm.","status":"published","published":"2022-05-13T01:19:56Z","modified":"2023-02-01T05:05:55Z","cvss":[{"version":"3.0","score":5.5,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:50:17.420383Z"}],"nvd":[{"id":"CVE-2018-20673","description":"The demangle_template function in cplus-dem.c in GNU libiberty, as distributed in GNU Binutils 2.31.1, contains an integer overflow vulnerability (for \"Create an array for saving the template argument values\") that can trigger a heap-based buffer overflow, as demonstrated by nm.","status":"published","published":"2019-01-04T18:29:00.21Z","modified":"2026-06-17T01:53:17.633Z","cvss":[{"version":"3.0","score":5.5,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary"},{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-190","CWE-787"],"updated_at":"2026-11-02T14:04:52.056758Z"}],"osv":[{"id":"AZL-41601","title":"CVE-2018-20673 affecting package crash for versions less than 9.0.0-1","description":"The demangle_template function in cplus-dem.c in GNU libiberty, as distributed in GNU Binutils 2.31.1, contains an integer overflow vulnerability (for \"Create an array for saving the template argument values\") that can trigger a heap-based buffer overflow, as demonstrated by nm.","status":"published","published":"2019-01-04T18:29:00Z","modified":"2026-04-21T04:55:15.060528Z","cvss":[{"version":"3.0","score":5.5,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:28:04.893995Z"},{"id":"CVE-2018-20673","description":"The demangle_template function in cplus-dem.c in GNU libiberty, as distributed in GNU Binutils 2.31.1, contains an integer overflow vulnerability (for \"Create an array for saving the template argument values\") that can trigger a heap-based buffer overflow, as demonstrated by nm.","status":"published","published":"2019-01-04T18:29:00.21Z","modified":"2026-10-24T10:30:39.97332895Z","cvss":[{"version":"3.0","score":5.5,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:44:09.145458Z"},{"id":"DEBIAN-CVE-2018-20673","description":"The demangle_template function in cplus-dem.c in GNU libiberty, as distributed in GNU Binutils 2.31.1, contains an integer overflow vulnerability (for \"Create an array for saving the template argument values\") that can trigger a heap-based buffer overflow, as demonstrated by nm.","status":"published","published":"2019-01-04T18:29:00.21Z","modified":"2026-10-23T18:03:05.084632511Z","cvss":[{"version":"3.0","score":5.5,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:45:30.867575Z"},{"id":"RHSA-2021:4386","title":"Red Hat Security Advisory: gcc security and bug fix update","status":"published","published":"2024-09-16T05:51:16Z","modified":"2026-06-26T12:21:17.256491858Z","cvss":[{"version":"3.0","score":5.3,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L","level":"medium"}],"updated_at":"2026-11-02T15:53:08.619234Z"},{"id":"RLSA-2021:4386","title":"Low: gcc security and bug fix update","description":"The gcc packages provide compilers for C, C++, Java, Fortran, Objective C, and Ada 95 GNU, as well as related support libraries.\n\nSecurity Fix(es):\n\n* libiberty: Integer overflow in demangle_template() function (CVE-2018-20673)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n\nAdditional Changes:\n\nFor detailed information on changes in this release, see the Rocky Linux 8.5 Release Notes linked from the References section.","status":"published","published":"2021-11-09T09:16:05Z","modified":"2026-02-05T09:45:06.411174Z","cvss":[{"version":"3.0","score":5.3,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L","level":"medium"}],"updated_at":"2026-11-02T15:53:23.969672Z"},{"id":"UBUNTU-CVE-2018-20673","description":"The demangle_template function in cplus-dem.c in GNU libiberty, as distributed in GNU Binutils 2.31.1, contains an integer overflow vulnerability (for \"Create an array for saving the template argument values\") that can trigger a heap-based buffer overflow, as demonstrated by nm.","status":"published","published":"2019-01-04T18:29:00Z","modified":"2026-04-22T11:52:12.583422Z","cvss":[{"version":"3.0","score":5.5,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:54:17.91743Z"},{"id":"ALSA-2021:4386","title":"Low: gcc security and bug fix update","description":"The gcc packages provide compilers for C, C++, Java, Fortran, Objective C, and Ada 95 GNU, as well as related support libraries.\n\nSecurity Fix(es):\n\n* libiberty: Integer overflow in demangle_template() function (CVE-2018-20673)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n\nAdditional Changes:\n\nFor detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section.","status":"published","published":"2021-11-09T09:16:05Z","modified":"2026-10-29T11:01:28.90832035Z","updated_at":"2026-11-02T15:27:51.196609Z"},{"id":"CLSA-2022-1646060667","title":"Fix of CVE: CVE-2021-42574, CVE-2018-20673","description":"- CVE-2021-42574: Developer environment: Unicode's bidirectional (BiDi) override characters can cause trojan source attacks (#2008391)\n- CVE-2018-20673: libiberty: Integer overflow in demangle_template() function (#1668394)","status":"published","published":"2022-02-28T15:04:27Z","modified":"2026-10-21T10:48:05.08495613Z","updated_at":"2026-11-02T15:43:39.801198Z"},{"id":"ROOT-OS-DEBIAN-12-CVE-2018-20673","title":"CVE-2018-20673 in binutils - Patched by Root","description":"Root has patched CVE-2018-20673 in the binutils package for Root:Debian:12. Multiple fixed versions available.","status":"published","published":"2026-08-25T10:13:46Z","modified":"2026-08-26T01:10:21.414041235Z","updated_at":"2026-11-02T15:53:30.44348Z"}]}}