RHSA-2018:3327 — Security Advisory

An update for libmspack 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.

The libmspack packages contain a library providing compression and extraction of the Cabinet (CAB) file format used by Microsoft.

Security Fix(es):

• libmspack: off-by-one error in the CHM PMGI/PMGL chunk number validity checks (CVE-2018-14679)

• libmspack: off-by-one error in the CHM chunk number validity checks (CVE-2018-14680)

• libmspack: out-of-bounds write in kwajd_read_headers in mspack/kwajd.c (CVE-2018-14681)

• libmspack: off-by-one error in the TOLOWER() macro for CHM decompression (CVE-2018-14682)

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.