RHSA-2018:3246 - Security Advisory

Topic

An update for libcdio 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 libcdio library provides an interface for CD-ROM access. It can be used by applications that need OS-independent and device-independent access to CD-ROM devices.

Security Fix(es):

• libcdio: Heap-based buffer over-read in print_iso9660_recurse function in iso-info.c (CVE-2017-18198)
• libcdio: NULL pointer dereference in realloc_symlink in rock.c (CVE-2017-18199)
• libcdio: Double free in get_cdtext_generic() in lib/driver/_cdio_generic.c (CVE-2017-18201)

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
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 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
• Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems) 7 s390x
• Red Hat Enterprise Linux for ARM 64 7 aarch64
• Red Hat Enterprise Linux for Power 9 7 ppc64le
• Red Hat Enterprise Linux for IBM System z (Structure A) 7 s390x
• Red Hat Enterprise Linux Server - Extended Life Cycle Support for IBM Power, big endian 7 ppc64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support for IBM Power, little endian 7 ppc64le

Fixes

• BZ - 1549644 - CVE-2017-18198 libcdio: Heap-based buffer over-read in print_iso9660_recurse function in iso-info.c
• BZ - 1549701 - CVE-2017-18199 libcdio: NULL pointer dereference in realloc_symlink in rock.c
• BZ - 1549707 - CVE-2017-18201 libcdio: Double free in get_cdtext_generic() in lib/driver/_cdio_generic.c

CVEs

• CVE-2017-18198
• CVE-2017-18199
• CVE-2017-18201

References

• https://access.redhat.com/security/updates/classification/#low
• https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/7.6_release_notes/index