Heap-based Buffer Overflow Affecting libarchive package, versions <0:3.3.3-1.el8
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-RHEL8-LIBARCHIVE-3402384
- published26 Jul 2021
- disclosed5 Sept 2017
Introduced: 5 Sep 2017
CVE-2017-14166 (opens in a new tab)How to fix?
Upgrade RHEL:8 libarchive to version 0:3.3.3-1.el8 or higher.
This issue was patched in RHEA-2021:1580.
NVD Description
Note: Versions mentioned in the description apply only to the upstream libarchive package and not the libarchive package as distributed by RHEL.
See How to fix? for RHEL:8 relevant fixed versions and status.
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
- https://access.redhat.com/security/cve/CVE-2017-14166
- https://www.debian.org/security/2018/dsa-4360
- https://security.gentoo.org/glsa/201908-11
- 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://access.redhat.com/errata/RHEA-2021:1580
- https://usn.ubuntu.com/3736-1/