Vulnerability · Published Mar 26, 2021 · Assigned by redhat
CVE-2021-20284
Medium 5.5
In plain English
A medium-severity memory corruption in binutils. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.3% (higher than 70% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)1.3%top 29.7% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:8 | binutils-devel | 2.30-108.el8 | ALSA-2021:4364 |
| Debian:12 | binutils | 2.37-3 | DEBIAN-CVE-2021-20284 |
| Debian:13 | binutils | 2.37-3 | DEBIAN-CVE-2021-20284 |
| Debian:14 | binutils | 2.37-3 | DEBIAN-CVE-2021-20284 |
| Rocky Linux:8 | binutils | 0:2.30-108.el8 | RLSA-2021:4364 |
| Ubuntu:22.04:LTS | binutils | 2.38-2ubuntu1 | UBUNTU-CVE-2021-20284 |
Affected products (as reported)
Weakness: CWE-119
References
- https://sourceware.org/bugzilla/show_bug.cgi?id=26931 x_refsource_MISC
- https://bugzilla.redhat.com/show_bug.cgi?id=1937784 x_refsource_MISC
- https://security.netapp.com/advisory/ntap-20210521-0010/ x_refsource_CONFIRM
- GLSA-202208-30 vendor-advisory, x_refsource_GENTOO