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.
References (6)
Core 6
Core References
Patch, Third Party Advisory x_refsource_misc
https://blogs.gentoo.org/ago/2017/09/06/libarchive-heap-based-buffer-overflow-in-xml_data-archive_read_support_format_xar-c/
Mailing List, Third Party Advisory mailing-list
x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2018/11/msg00037.html
Third Party Advisory vendor-advisory
x_refsource_debian
https://www.debian.org/security/2018/dsa-4360
Patch, Third Party Advisory x_refsource_misc
https://github.com/libarchive/libarchive/commit/fa7438a0ff4033e4741c807394a9af6207940d71
Third Party Advisory vendor-advisory
x_refsource_ubuntu
https://usn.ubuntu.com/3736-1/
Third Party Advisory vendor-advisory
x_refsource_gentoo
https://security.gentoo.org/glsa/201908-11
Scores
CVSS v3
6.5
EPSS
0.0160
EPSS Percentile
81.8%
Attack Vector
NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Details
CWE
CWE-125
Status
published
Products (5)
canonical/ubuntu_linux
14.04
canonical/ubuntu_linux
16.04
debian/debian_linux
8.0
debian/debian_linux
9.0
libarchive/libarchive
3.3.2
Published
Sep 06, 2017
Tracked Since
Feb 18, 2026