{"id":"CVE-2021-20284","details":"A flaw was found in GNU Binutils 2.35.1, where there is a heap-based buffer overflow in _bfd_elf_slurp_secondary_reloc_section in elf.c due to the number of symbols not calculated correctly. The highest threat from this vulnerability is to system availability.","modified":"2026-04-09T07:23:56.238257Z","published":"2021-03-26T17:15:13.063Z","related":["ALSA-2021:4364","SUSE-SU-2021:3593-1","SUSE-SU-2021:3616-1","SUSE-SU-2022:0934-1","openSUSE-SU-2021:1475-1","openSUSE-SU-2021:3616-1","openSUSE-SU-2024:10651-1"],"references":[{"type":"ADVISORY","url":"https://security.gentoo.org/glsa/202208-30"},{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20210521-0010/"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1937784"},{"type":"REPORT","url":"https://sourceware.org/bugzilla/show_bug.cgi?id=26931"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://sourceware.org/git/binutils-gdb.git","events":[{"introduced":"0"},{"last_affected":"7e46a74aa3713c563940960e361e08defda019c2"}],"database_specific":{"versions":[{"introduced":"0"},{"last_affected":"2.35.1"}]}}],"versions":["binutils-2_35","binutils-2_35_1","gdb-4_18-branchpoint","gdb-7.10-branchpoint","gdb-7.11-branchpoint","gdb-7.12-branchpoint","gdb-7.7-branchpoint","gdb-7.8-branchpoint","gdb-7.9-branchpoint","gdb-8.0-branchpoint","gdb-8.1-branchpoint","gdb-8.2-branchpoint","gdb-8.3-branchpoint","gdb-9-branchpoint","gdb_5_2-branchpoint","gdb_5_3-branchpoint","gdb_6_0-branchpoint","gdb_6_1-branchpoint","gdb_6_2-branchpoint","gdb_6_3-branchpoint","gdb_6_4-branchpoint","gdb_6_5-branchpoint","gdb_6_6-branchpoint","gdb_6_7-branchpoint","gdb_6_8-branchpoint","gdb_7_0-branchpoint","gdb_7_1-branchpoint","gdb_7_2-branchpoint","gdb_7_3-branchpoint","gdb_7_4-branchpoint","gdb_7_5-branchpoint","gdb_7_6-branchpoint","users/ARM/embedded-binutils-master-2016q4","users/ARM/embedded-binutils-master-2017q4","users/ARM/embedded-binutils-master-2018q4","users/ARM/embedded-gdb-master-2017q4","users/ARM/embedded-gdb-master-2018q4"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-20284.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"}]}