=========================================================================Ubuntu Security Notice USN-6099-1
May 23, 2023

ncurses vulnerabilities
=========================================================================
A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 23.04
- Ubuntu 22.10
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS (Available with Ubuntu Pro)
- Ubuntu 14.04 LTS (Available with Ubuntu Pro)

Summary:

Several security issues were fixed in ncurses.

Software Description:
- ncurses: shared libraries for terminal handling

Details:

It was discovered that ncurses was incorrectly performing bounds
checks when processing invalid hashcodes. An attacker could possibly
use this issue to cause a denial of service or to expose sensitive
information. This issue only affected Ubuntu 18.04 LTS.
(CVE-2019-17594)

It was discovered that ncurses was incorrectly handling
end-of-string characters when processing terminfo and termcap files.
An attacker could possibly use this issue to cause a denial of
service or to expose sensitive information. This issue only affected
Ubuntu 18.04 LTS. (CVE-2019-17595)

It was discovered that ncurses was incorrectly handling
end-of-string characters when converting between termcap and
terminfo formats. An attacker could possibly use this issue to cause
a denial of service or execute arbitrary code. This issue only
affected Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. (CVE-2021-39537)

It was discovered that ncurses was incorrectly performing bounds
checks when dealing with corrupt terminfo data while reading a
terminfo file. An attacker could possibly use this issue to cause a
denial of service or to expose sensitive information. This issue only
affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS and Ubuntu 22.04 LTS.
(CVE-2022-29458)

It was discovered that ncurses was parsing environment variables when
running with setuid applications and not properly handling the
processing of malformed data when doing so. A local attacker could
possibly use this issue to cause a denial of service (application
crash) or execute arbitrary code. (CVE-2023-29491)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 23.04:
   lib32ncurses6                   6.4-2ubuntu0.1
   lib32ncursesw6                  6.4-2ubuntu0.1
   lib32tinfo6                     6.4-2ubuntu0.1
   lib64ncurses6                   6.4-2ubuntu0.1
   lib64ncursesw6                  6.4-2ubuntu0.1
   lib64tinfo6                     6.4-2ubuntu0.1
   libncurses5                     6.4-2ubuntu0.1
   libncurses6                     6.4-2ubuntu0.1
   libncursesw5                    6.4-2ubuntu0.1
   libncursesw6                    6.4-2ubuntu0.1
   libtinfo5                       6.4-2ubuntu0.1
   libtinfo6                       6.4-2ubuntu0.1
   ncurses-bin                     6.4-2ubuntu0.1

Ubuntu 22.10:
   lib32ncurses6                   6.3+20220423-2ubuntu0.1
   lib32ncursesw6                  6.3+20220423-2ubuntu0.1
   lib32tinfo6                     6.3+20220423-2ubuntu0.1
   lib64ncurses6                   6.3+20220423-2ubuntu0.1
   lib64ncursesw6                  6.3+20220423-2ubuntu0.1
   lib64tinfo6                     6.3+20220423-2ubuntu0.1
   libncurses5                     6.3+20220423-2ubuntu0.1
   libncurses6                     6.3+20220423-2ubuntu0.1
   libncursesw5                    6.3+20220423-2ubuntu0.1
   libncursesw6                    6.3+20220423-2ubuntu0.1
   libtinfo5                       6.3+20220423-2ubuntu0.1
   libtinfo6                       6.3+20220423-2ubuntu0.1
   ncurses-bin                     6.3+20220423-2ubuntu0.1

Ubuntu 22.04 LTS:
   lib32ncurses6                   6.3-2ubuntu0.1
   lib32ncursesw6                  6.3-2ubuntu0.1
   lib32tinfo6                     6.3-2ubuntu0.1
   lib64ncurses6                   6.3-2ubuntu0.1
   lib64ncursesw6                  6.3-2ubuntu0.1
   lib64tinfo6                     6.3-2ubuntu0.1
   libncurses5                     6.3-2ubuntu0.1
   libncurses6                     6.3-2ubuntu0.1
   libncursesw5                    6.3-2ubuntu0.1
   libncursesw6                    6.3-2ubuntu0.1
   libtinfo5                       6.3-2ubuntu0.1
   libtinfo6                       6.3-2ubuntu0.1
   ncurses-bin                     6.3-2ubuntu0.1

Ubuntu 20.04 LTS:
   lib32ncurses6                   6.2-0ubuntu2.1
   lib32ncursesw6                  6.2-0ubuntu2.1
   lib32tinfo6                     6.2-0ubuntu2.1
   lib64ncurses6                   6.2-0ubuntu2.1
   lib64ncursesw6                  6.2-0ubuntu2.1
   lib64tinfo6                     6.2-0ubuntu2.1
   libncurses5                     6.2-0ubuntu2.1
   libncurses6                     6.2-0ubuntu2.1
   libncursesw5                    6.2-0ubuntu2.1
   libncursesw6                    6.2-0ubuntu2.1
   libtinfo5                       6.2-0ubuntu2.1
   libtinfo6                       6.2-0ubuntu2.1
   ncurses-bin                     6.2-0ubuntu2.1

Ubuntu 18.04 LTS:
   lib32ncurses5                   6.1-1ubuntu1.18.04.1
   lib32ncursesw5                  6.1-1ubuntu1.18.04.1
   lib32tinfo5                     6.1-1ubuntu1.18.04.1
   lib64ncurses5                   6.1-1ubuntu1.18.04.1
   lib64tinfo5                     6.1-1ubuntu1.18.04.1
   libncurses5                     6.1-1ubuntu1.18.04.1
   libncursesw5                    6.1-1ubuntu1.18.04.1
   libtinfo5                       6.1-1ubuntu1.18.04.1
   libx32ncurses5                  6.1-1ubuntu1.18.04.1
   libx32ncursesw5                 6.1-1ubuntu1.18.04.1
   libx32tinfo5                    6.1-1ubuntu1.18.04.1
   ncurses-bin                     6.1-1ubuntu1.18.04.1

Ubuntu 16.04 LTS (Available with Ubuntu Pro):
   lib32ncurses5                   6.0+20160213-1ubuntu1+esm3
   lib32ncursesw5                  6.0+20160213-1ubuntu1+esm3
   lib32tinfo5                     6.0+20160213-1ubuntu1+esm3
   lib64ncurses5                   6.0+20160213-1ubuntu1+esm3
   lib64tinfo5                     6.0+20160213-1ubuntu1+esm3
   libncurses5                     6.0+20160213-1ubuntu1+esm3
   libncursesw5                    6.0+20160213-1ubuntu1+esm3
   libtinfo5                       6.0+20160213-1ubuntu1+esm3
   libx32ncurses5                  6.0+20160213-1ubuntu1+esm3
   libx32ncursesw5                 6.0+20160213-1ubuntu1+esm3
   libx32tinfo5                    6.0+20160213-1ubuntu1+esm3
   ncurses-bin                     6.0+20160213-1ubuntu1+esm3

Ubuntu 14.04 LTS (Available with Ubuntu Pro):
   lib32ncurses5                   5.9+20140118-1ubuntu1+esm3
   lib32ncursesw5                  5.9+20140118-1ubuntu1+esm3
   lib32tinfo5                     5.9+20140118-1ubuntu1+esm3
   lib64ncurses5                   5.9+20140118-1ubuntu1+esm3
   lib64tinfo5                     5.9+20140118-1ubuntu1+esm3
   libncurses5                     5.9+20140118-1ubuntu1+esm3
   libncursesw5                    5.9+20140118-1ubuntu1+esm3
   libtinfo5                       5.9+20140118-1ubuntu1+esm3
   libx32ncurses5                  5.9+20140118-1ubuntu1+esm3
   libx32ncursesw5                 5.9+20140118-1ubuntu1+esm3
   libx32tinfo5                    5.9+20140118-1ubuntu1+esm3
   ncurses-bin                     5.9+20140118-1ubuntu1+esm3

In general, a standard system update will make all the necessary changes.

References:
   https://ubuntu.com/security/notices/USN-6099-1
   CVE-2019-17594, CVE-2019-17595, CVE-2021-39537, CVE-2022-29458,
   CVE-2023-29491

Package Information:
   https://launchpad.net/ubuntu/+source/ncurses/6.4-2ubuntu0.1
https://launchpad.net/ubuntu/+source/ncurses/6.3+20220423-2ubuntu0.1
   https://launchpad.net/ubuntu/+source/ncurses/6.3-2ubuntu0.1
   https://launchpad.net/ubuntu/+source/ncurses/6.2-0ubuntu2.1
https://launchpad.net/ubuntu/+source/ncurses/6.1-1ubuntu1.18.04.1

Ubuntu 6099-1: ncurses vulnerabilities

May 23, 2023
Several security issues were fixed in ncurses.

Summary

Update Instructions

The problem can be corrected by updating your system to the following package versions: Ubuntu 23.04:   lib32ncurses6                   6.4-2ubuntu0.1   lib32ncursesw6                  6.4-2ubuntu0.1   lib32tinfo6                     6.4-2ubuntu0.1   lib64ncurses6                   6.4-2ubuntu0.1   lib64ncursesw6                  6.4-2ubuntu0.1   lib64tinfo6                     6.4-2ubuntu0.1   libncurses5                     6.4-2ubuntu0.1   libncurses6                     6.4-2ubuntu0.1   libncursesw5                    6.4-2ubuntu0.1   libncursesw6                    6.4-2ubuntu0.1   libtinfo5                       6.4-2ubuntu0.1   libtinfo6                       6.4-2ubuntu0.1   ncurses-bin                     6.4-2ubuntu0.1 Ubuntu 22.10:   lib32ncurses6                   6.3+20220423-2ubuntu0.1   lib32ncursesw6                  6.3+20220423-2ubuntu0.1   lib32tinfo6                     6.3+20220423-2ubuntu0.1   lib64ncurses6                   6.3+20220423-2ubuntu0.1   lib64ncursesw6                  6.3+20220423-2ubuntu0.1   lib64tinfo6                     6.3+20220423-2ubuntu0.1   libncurses5                     6.3+20220423-2ubuntu0.1   libncurses6                     6.3+20220423-2ubuntu0.1   libncursesw5                    6.3+20220423-2ubuntu0.1   libncursesw6                    6.3+20220423-2ubuntu0.1   libtinfo5                       6.3+20220423-2ubuntu0.1   libtinfo6                       6.3+20220423-2ubuntu0.1   ncurses-bin                     6.3+20220423-2ubuntu0.1 Ubuntu 22.04 LTS:   lib32ncurses6                   6.3-2ubuntu0.1   lib32ncursesw6                  6.3-2ubuntu0.1   lib32tinfo6                     6.3-2ubuntu0.1   lib64ncurses6                   6.3-2ubuntu0.1   lib64ncursesw6                  6.3-2ubuntu0.1   lib64tinfo6                     6.3-2ubuntu0.1   libncurses5                     6.3-2ubuntu0.1   libncurses6                     6.3-2ubuntu0.1   libncursesw5                    6.3-2ubuntu0.1   libncursesw6                    6.3-2ubuntu0.1   libtinfo5                       6.3-2ubuntu0.1   libtinfo6                       6.3-2ubuntu0.1   ncurses-bin                     6.3-2ubuntu0.1 Ubuntu 20.04 LTS:   lib32ncurses6                   6.2-0ubuntu2.1   lib32ncursesw6                  6.2-0ubuntu2.1   lib32tinfo6                     6.2-0ubuntu2.1   lib64ncurses6                   6.2-0ubuntu2.1   lib64ncursesw6                  6.2-0ubuntu2.1   lib64tinfo6                     6.2-0ubuntu2.1   libncurses5                     6.2-0ubuntu2.1   libncurses6                     6.2-0ubuntu2.1   libncursesw5                    6.2-0ubuntu2.1   libncursesw6                    6.2-0ubuntu2.1   libtinfo5                       6.2-0ubuntu2.1   libtinfo6                       6.2-0ubuntu2.1   ncurses-bin                     6.2-0ubuntu2.1 Ubuntu 18.04 LTS:   lib32ncurses5                   6.1-1ubuntu1.18.04.1   lib32ncursesw5                  6.1-1ubuntu1.18.04.1   lib32tinfo5                     6.1-1ubuntu1.18.04.1   lib64ncurses5                   6.1-1ubuntu1.18.04.1   lib64tinfo5                     6.1-1ubuntu1.18.04.1   libncurses5                     6.1-1ubuntu1.18.04.1   libncursesw5                    6.1-1ubuntu1.18.04.1   libtinfo5                       6.1-1ubuntu1.18.04.1   libx32ncurses5                  6.1-1ubuntu1.18.04.1   libx32ncursesw5                 6.1-1ubuntu1.18.04.1   libx32tinfo5                    6.1-1ubuntu1.18.04.1   ncurses-bin                     6.1-1ubuntu1.18.04.1 Ubuntu 16.04 LTS (Available with Ubuntu Pro):   lib32ncurses5                   6.0+20160213-1ubuntu1+esm3   lib32ncursesw5                  6.0+20160213-1ubuntu1+esm3   lib32tinfo5                     6.0+20160213-1ubuntu1+esm3   lib64ncurses5                   6.0+20160213-1ubuntu1+esm3   lib64tinfo5                     6.0+20160213-1ubuntu1+esm3   libncurses5                     6.0+20160213-1ubuntu1+esm3   libncursesw5                    6.0+20160213-1ubuntu1+esm3   libtinfo5                       6.0+20160213-1ubuntu1+esm3   libx32ncurses5                  6.0+20160213-1ubuntu1+esm3   libx32ncursesw5                 6.0+20160213-1ubuntu1+esm3   libx32tinfo5                    6.0+20160213-1ubuntu1+esm3   ncurses-bin                     6.0+20160213-1ubuntu1+esm3 Ubuntu 14.04 LTS (Available with Ubuntu Pro):   lib32ncurses5                   5.9+20140118-1ubuntu1+esm3   lib32ncursesw5                  5.9+20140118-1ubuntu1+esm3   lib32tinfo5                     5.9+20140118-1ubuntu1+esm3   lib64ncurses5                   5.9+20140118-1ubuntu1+esm3   lib64tinfo5                     5.9+20140118-1ubuntu1+esm3   libncurses5                     5.9+20140118-1ubuntu1+esm3   libncursesw5                    5.9+20140118-1ubuntu1+esm3   libtinfo5                       5.9+20140118-1ubuntu1+esm3   libx32ncurses5                  5.9+20140118-1ubuntu1+esm3   libx32ncursesw5                 5.9+20140118-1ubuntu1+esm3   libx32tinfo5                    5.9+20140118-1ubuntu1+esm3   ncurses-bin                     5.9+20140118-1ubuntu1+esm3 In general, a standard system update will make all the necessary changes.

References

  https://ubuntu.com/security/notices/USN-6099-1

  CVE-2019-17594, CVE-2019-17595, CVE-2021-39537, CVE-2022-29458,

  CVE-2023-29491

Severity
May 23, 2023

Package Information

  https://launchpad.net/ubuntu/+source/ncurses/6.4-2ubuntu0.1 https://launchpad.net/ubuntu/+source/ncurses/6.3+20220423-2ubuntu0.1   https://launchpad.net/ubuntu/+source/ncurses/6.3-2ubuntu0.1   https://launchpad.net/ubuntu/+source/ncurses/6.2-0ubuntu2.1 https://launchpad.net/ubuntu/+source/ncurses/6.1-1ubuntu1.18.04.1

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