{"id":"CVE-2021-3826","details":"Heap/stack buffer overflow in the dlang_lname function in d-demangle.c in libiberty allows attackers to potentially cause a denial of service (segmentation fault and crash) via a crafted mangled symbol.","modified":"2026-07-08T05:59:49.695937954Z","published":"2022-09-01T21:15:08.843Z","related":["ALSA-2023:6372","SUSE-SU-2022:4146-1","SUSE-SU-2022:4277-1","openSUSE-SU-2024:12631-1"],"database_specific":{"unresolved_ranges":[{"vendor_product":"fedoraproject:fedora","cpes":["cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*","cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*","cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*"],"extracted_events":[{"introduced":"35"},{"last_affected":"35"},{"introduced":"36"},{"last_affected":"36"},{"introduced":"37"},{"last_affected":"37"}],"source":"CPE_STRING"}]},"references":[{"type":"WEB","url":"https://gcc.gnu.org/git/?p=gcc.git%3Ba=commit%3Bh=5481040197402be6dfee265bd2ff5a4c88e30505"},{"type":"ADVISORY","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4MYLS3VR4OPL5ECRWOR4ZHMGXUSCJFZY/"},{"type":"ADVISORY","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6AKZ2DTS3ATVN5PANNVLKLE5OP4OF25Q/"},{"type":"ADVISORY","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7MTEHT3G6YKJ7F7MSGWYSI4UM3XBAYXZ/"},{"type":"ADVISORY","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AXFC74WRZ2Q7F2TSUKPYNIL7ZPBWYI6L/"},{"type":"ADVISORY","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/H424YXGW7OKXS2NCAP35OP6Y4P4AW6VG/"},{"type":"FIX","url":"https://gcc.gnu.org/pipermail/gcc-patches/2021-September/579987"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/gcc-mirror/gcc","events":[{"introduced":"7ca388565af176bd4efd4f8db1e5e9e11e98ef45"},{"last_affected":"7ca388565af176bd4efd4f8db1e5e9e11e98ef45"}],"database_specific":{"cpe":"cpe:2.3:a:gnu:gcc:11.2:*:*:*:*:*:*:*","extracted_events":[{"introduced":"11.2"},{"last_affected":"11.2"}],"source":"CPE_STRING"}}],"versions":["11.2","releases/gcc-11.2.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-3826.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"}]}