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=====================================================================
                   Red Hat Security Advisory

Synopsis:          Moderate: ncurses security update
Advisory ID:       RHSA-2021:4426-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2021:4426
Issue date:        2021-11-09
CVE Names:         CVE-2019-17594 CVE-2019-17595 
=====================================================================

1. Summary:

An update for ncurses is now available for Red Hat Enterprise Linux 8.

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.

2. Relevant releases/architectures:

Red Hat Enterprise Linux BaseOS (v. 8) - aarch64, noarch, ppc64le, s390x, x86_64

3. Description:

The ncurses (new curses) library routines are a terminal-independent method
of updating character screens with reasonable optimization. The ncurses
packages contain support utilities including a terminfo compiler tic, a
decompiler infocmp, clear, tput, tset, and a termcap conversion tool
captoinfo.

Security Fix(es):

* ncurses: heap-based buffer overflow in the _nc_find_entry function in
tinfo/comp_hash.c (CVE-2019-17594)

* ncurses: heap-based buffer overflow in the fmt_entry function in
tinfo/comp_hash.c (CVE-2019-17595)

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 8.5 Release Notes linked from the References section.

4. 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

5. Bugs fixed (https://bugzilla.redhat.com/):

1766617 - CVE-2019-17595 ncurses: heap-based buffer overflow in the fmt_entry function in tinfo/comp_hash.c
1766745 - CVE-2019-17594 ncurses: heap-based buffer overflow in the _nc_find_entry function in tinfo/comp_hash.c

6. Package List:

Red Hat Enterprise Linux BaseOS (v. 8):

Source:
ncurses-6.1-9.20180224.el8.src.rpm

aarch64:
ncurses-6.1-9.20180224.el8.aarch64.rpm
ncurses-c++-libs-6.1-9.20180224.el8.aarch64.rpm
ncurses-c++-libs-debuginfo-6.1-9.20180224.el8.aarch64.rpm
ncurses-compat-libs-6.1-9.20180224.el8.aarch64.rpm
ncurses-compat-libs-debuginfo-6.1-9.20180224.el8.aarch64.rpm
ncurses-debuginfo-6.1-9.20180224.el8.aarch64.rpm
ncurses-debugsource-6.1-9.20180224.el8.aarch64.rpm
ncurses-devel-6.1-9.20180224.el8.aarch64.rpm
ncurses-libs-6.1-9.20180224.el8.aarch64.rpm
ncurses-libs-debuginfo-6.1-9.20180224.el8.aarch64.rpm

noarch:
ncurses-base-6.1-9.20180224.el8.noarch.rpm
ncurses-term-6.1-9.20180224.el8.noarch.rpm

ppc64le:
ncurses-6.1-9.20180224.el8.ppc64le.rpm
ncurses-c++-libs-6.1-9.20180224.el8.ppc64le.rpm
ncurses-c++-libs-debuginfo-6.1-9.20180224.el8.ppc64le.rpm
ncurses-compat-libs-6.1-9.20180224.el8.ppc64le.rpm
ncurses-compat-libs-debuginfo-6.1-9.20180224.el8.ppc64le.rpm
ncurses-debuginfo-6.1-9.20180224.el8.ppc64le.rpm
ncurses-debugsource-6.1-9.20180224.el8.ppc64le.rpm
ncurses-devel-6.1-9.20180224.el8.ppc64le.rpm
ncurses-libs-6.1-9.20180224.el8.ppc64le.rpm
ncurses-libs-debuginfo-6.1-9.20180224.el8.ppc64le.rpm

s390x:
ncurses-6.1-9.20180224.el8.s390x.rpm
ncurses-c++-libs-6.1-9.20180224.el8.s390x.rpm
ncurses-c++-libs-debuginfo-6.1-9.20180224.el8.s390x.rpm
ncurses-compat-libs-6.1-9.20180224.el8.s390x.rpm
ncurses-compat-libs-debuginfo-6.1-9.20180224.el8.s390x.rpm
ncurses-debuginfo-6.1-9.20180224.el8.s390x.rpm
ncurses-debugsource-6.1-9.20180224.el8.s390x.rpm
ncurses-devel-6.1-9.20180224.el8.s390x.rpm
ncurses-libs-6.1-9.20180224.el8.s390x.rpm
ncurses-libs-debuginfo-6.1-9.20180224.el8.s390x.rpm

x86_64:
ncurses-6.1-9.20180224.el8.x86_64.rpm
ncurses-c++-libs-6.1-9.20180224.el8.i686.rpm
ncurses-c++-libs-6.1-9.20180224.el8.x86_64.rpm
ncurses-c++-libs-debuginfo-6.1-9.20180224.el8.i686.rpm
ncurses-c++-libs-debuginfo-6.1-9.20180224.el8.x86_64.rpm
ncurses-compat-libs-6.1-9.20180224.el8.i686.rpm
ncurses-compat-libs-6.1-9.20180224.el8.x86_64.rpm
ncurses-compat-libs-debuginfo-6.1-9.20180224.el8.i686.rpm
ncurses-compat-libs-debuginfo-6.1-9.20180224.el8.x86_64.rpm
ncurses-debuginfo-6.1-9.20180224.el8.i686.rpm
ncurses-debuginfo-6.1-9.20180224.el8.x86_64.rpm
ncurses-debugsource-6.1-9.20180224.el8.i686.rpm
ncurses-debugsource-6.1-9.20180224.el8.x86_64.rpm
ncurses-devel-6.1-9.20180224.el8.i686.rpm
ncurses-devel-6.1-9.20180224.el8.x86_64.rpm
ncurses-libs-6.1-9.20180224.el8.i686.rpm
ncurses-libs-6.1-9.20180224.el8.x86_64.rpm
ncurses-libs-debuginfo-6.1-9.20180224.el8.i686.rpm
ncurses-libs-debuginfo-6.1-9.20180224.el8.x86_64.rpm

These packages are GPG signed by Red Hat for security.  Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/

7. References:

https://access.redhat.com/security/cve/CVE-2019-17594
https://access.redhat.com/security/cve/CVE-2019-17595
https://access.redhat.com/security/updates/classification/#moderate
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.5_release_notes/

8. Contact:

The Red Hat security contact is . More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2021 Red Hat, Inc.
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