Moderate: libarchive security update

Synopsis

Moderate: libarchive security update

Type/Severity

Security Advisory: Moderate

Topic

An update for libarchive is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

The libarchive programming library can create and read several different streaming archive formats, including GNU tar, cpio, and ISO 9660 CD-ROM images. Libarchive is used notably in the bsdtar utility, scripting language bindings such as python-libarchive, and several popular desktop file managers.

Security Fix(es):

• libarchive: Double free in RAR decoder resulting in a denial of service (CVE-2018-1000877)
  
• libarchive: Use after free in RAR decoder resulting in a denial of service (CVE-2018-1000878)
  
• libarchive: Out of bounds read in archive_read_support_format_7zip.c resulting in a denial of service (CVE-2019-1000019)
  
• libarchive: Infinite recursion in archive_read_support_format_iso9660.c resulting in denial of service (CVE-2019-1000020)
  
• libarchive: Out-of-bounds read in lha_read_data_none (CVE-2017-14503)
  

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes:

For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.7 Release Notes linked from the References section.

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

Affected Products

• Red Hat Enterprise Linux Server 7 x86_64
• Red Hat Enterprise Linux Workstation 7 x86_64
• Red Hat Enterprise Linux Desktop 7 x86_64
• Red Hat Enterprise Linux for IBM z Systems 7 s390x
• Red Hat Enterprise Linux for Power, big endian 7 ppc64
• Red Hat Enterprise Linux for Scientific Computing 7 x86_64
• Red Hat Enterprise Linux for Power, little endian 7 ppc64le

Fixes

• BZ - 1494449 - CVE-2017-14503 libarchive: Out-of-bounds read in lha_read_data_none
• BZ - 1663887 - CVE-2018-1000877 libarchive: Double free in RAR decoder resulting in a denial of service
• BZ - 1663889 - CVE-2018-1000878 libarchive: Use after free in RAR decoder resulting in a denial of service
• BZ - 1672888 - CVE-2019-1000020 libarchive: Infinite recursion in archive_read_support_format_iso9660.c resulting in denial of service
• BZ - 1672892 - CVE-2019-1000019 libarchive: Out of bounds read in archive_read_support_format_7zip.c resulting in a denial of service

CVEs

• CVE-2017-14503
• CVE-2018-1000877
• CVE-2018-1000878
• CVE-2019-1000019
• CVE-2019-1000020

References

• https://access.redhat.com/security/updates/classification/#moderate
• https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/7.7_release_notes/index