What’s Vulnerable › Vulnerabilities

CVE-2017-14166

• Severity: medium (CVSS 6.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2017-09-06 · updated 2026-06-17
• Weakness: CWE-125

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.

Affected products

• Canonical Ubuntu Linux: 14.04, 16.04
• Debian Linux: 8.0, 9.0
• libarchive: 3.3.2

References

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

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