CVE-2021-20284
Published: 26 March 2021
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.
Notes
| Author | Note |
|---|---|
| mdeslaur | code isn't present in focal and earlier, need to investigate if reproducer works |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
binutils Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(code not present)
|
| focal |
Not vulnerable
(code not present)
|
|
| groovy |
Ignored
(end of life)
|
|
| hirsute |
Not vulnerable
(2.36.1-6ubuntu1)
|
|
| impish |
Not vulnerable
(2.37-7ubuntu1)
|
|
| jammy |
Not vulnerable
(2.38-2ubuntu1)
|
|
| trusty |
Not vulnerable
(code not present)
|
|
| upstream |
Released
(2.36)
|
|
| xenial |
Not vulnerable
(code not present)
|
|
|
Patches: upstream: https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=f60742b2a1988d276c77d5c1011143f320d9b4cb |
||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 5.5 |
| Attack vector | Local |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | Required |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | None |
| Availability impact | High |
| Vector | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |