| Name | CVE-2021-20284 |
| Description | 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| binutils (PTS) | jessie, jessie (lts) | 2.25-5+deb8u2 | vulnerable |
| stretch (lts), stretch | 2.28-5+deb9u1 | vulnerable |
| buster, buster (lts) | 2.31.1-16+deb10u1 | vulnerable |
| bullseye | 2.35.2-2 | vulnerable |
| bookworm | 2.40-2 | fixed |
| trixie | 2.43.50.20241215-1 | fixed |
| sid | 2.43.50.20241221-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| binutils | source | (unstable) | 2.37-3 | unimportant | | |
Notes
https://sourceware.org/bugzilla/show_bug.cgi?id=26931
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=f60742b2a1988d276c77d5c1011143f320d9b4cb
binutils not covered by security support