CVE-2017-14166
MEDIUM severity · CVSS 6.5 · Out-of-bounds read
6.5CVSS MEDIUM
Summary
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.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionRequired
Confidentiality impactNone
Integrity impactNone
Availability impactHigh
Exploit probability (EPSS)3%
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Official patch: https://blogs.gentoo.org/ago/2017/09/06/libarchive-heap-based-buffer-overflow-in-xml_data-archive_read_support_format_xar-c/ ↗
Additional information
- NVD record
- https://blogs.gentoo.org/ago/2017/09/06/libarchive-heap-based-buffer-overflow-in-xml_data-archive_read_support_format_xar-c/Patch
- https://github.com/libarchive/libarchive/commit/fa7438a0ff4033e4741c807394a9af6207940d71Patch
- https://lists.debian.org/debian-lts-announce/2018/11/msg00037.htmlAdvisory
- https://security.gentoo.org/glsa/201908-11
- https://usn.ubuntu.com/3736-1/Advisory
- https://www.debian.org/security/2018/dsa-4360Advisory