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AUSCERT External Security Bulletin Redistribution
[DLA 1668-1] libarchive security update
8 February 2019
AusCERT Security Bulletin Summary
Operating System: Debian GNU/Linux 8
UNIX variants (UNIX, Linux, OSX)
Impact/Access: Denial of Service -- Remote with User Interaction
CVE Names: CVE-2019-1000020 CVE-2019-1000019
Comment: This advisory references vulnerabilities in products which run on
platforms other than Debian. It is recommended that administrators
running libarchive check for an updated version of the software for
their operating system.
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Package : libarchive
Version : 3.1.2-11+deb8u7
CVE ID : CVE-2019-1000019 CVE-2019-1000020
Fuzzing found two further file-format specific issues in libarchive, a
read-only segfault in 7z, and an infinite loop in ISO9660.
Out-of-bounds Read vulnerability in 7zip decompression, that can
result in a crash (denial of service, CWE-125)
Vulnerability in ISO9660 parser that can result in DoS by infinite
For Debian 8 "Jessie", these problems have been fixed in version
We recommend that you upgrade your libarchive packages.
Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS
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