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Red Hat Enterprise Linux 8 RHSA-2021-4426 Moderate: Ncurses Heap Overflow

red hat
Calendar Grey November 9, 2021
Dist Redhat Esm H88
A new patch for ncurses on Red Hat Enterprise Linux 8 tackles significant security vulnerabilities associated with heap memory overflows.
An update for ncurses is now available for Red Hat Enterprise Linux 8

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

Summary

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.

Topics%20covered

Topics Covered

security advisory security issue update ncurses Red Hat Enterprise Linux heap overflow moderate security

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://docs.redhat.com/en/documentation/red_hat_enterprise_linux/8/html/8.5_release_notes/index

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

Read the Full Advisory


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

Topic

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 impactof Moderate. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory security issue update ncurses Red Hat Enterprise Linux heap overflow moderate security

Relevant Releases Architectures

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

Bugs Fixed

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

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