Synopsis
Low: zziplib security update
Type/Severity
Security Advisory: Low
Topic
An update for zziplib is now available for Red Hat Enterprise Linux 7.
Red Hat Product Security has rated this update as having a security impact of Low. 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 zziplib is a lightweight library to easily extract data from zip files.
Security Fix(es):
- zziplib: out of bound read in mmapped.c:zzip_disk_fread() causes crash (CVE-2018-7725)
- zziplib: Bus error in zip.c:__zzip_parse_root_directory() cause crash via crafted zip file (CVE-2018-7726)
- zziplib: Memory leak in memdisk.c:zzip_mem_disk_new() can lead to denial of service via crafted zip (CVE-2018-7727)
For more details about the security issue(s), including the impact, a CVSS score, 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 7.6 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
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Red Hat Enterprise Linux Workstation 7 x86_64
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Red Hat Enterprise Linux Desktop 7 x86_64
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Red Hat Enterprise Linux for IBM z Systems 7 s390x
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Red Hat Enterprise Linux for Power, big endian 7 ppc64
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Red Hat Enterprise Linux for Scientific Computing 7 x86_64
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Red Hat Enterprise Linux for Power, little endian 7 ppc64le
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Red Hat Enterprise Linux for ARM 64 7 aarch64
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Red Hat Enterprise Linux for Power 9 7 ppc64le
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Red Hat Enterprise Linux for IBM System z (Structure A) 7 s390x
Fixes
- BZ - 1554662 - CVE-2018-7725 zziplib: out of bound read in mmapped.c:zzip_disk_fread() causes crash
- BZ - 1554672 - CVE-2018-7726 zziplib: Bus error in zip.c:__zzip_parse_root_directory() cause crash via crafted zip file
- BZ - 1554676 - CVE-2018-7727 zziplib: Memory leak in memdisk.c:zzip_mem_disk_new() can lead to denial of service via crafted zip
CVEs
References
Vulmon