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[USN-8709-1] ncurses vulnerability

Posted on 01 September 2026
Ubuntu Security

==========================================================================Ubuntu Security Notice USN-8709-1
September 01, 2026

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

- Ubuntu 24.04 LTS
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS

Summary:

ncurses could be made to crash if it opened a specially crafted file.

Software Description:
- ncurses: shared libraries for terminal handling

Details:

It was discovered that ncurses incorrectly handled specially crafted
terminfo database entries. A local attacker could possibly use this issue
to cause applications using ncurses to crash, resulting in a denial of
service.

Update instructions:

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

Ubuntu 24.04 LTS
libncurses6 6.4+20240113-1ubuntu2.2
libtinfo6 6.4+20240113-1ubuntu2.2
ncurses-bin 6.4+20240113-1ubuntu2.2

Ubuntu 22.04 LTS
libncurses5 6.3-2ubuntu0.3
libncurses6 6.3-2ubuntu0.3
libtinfo5 6.3-2ubuntu0.3
libtinfo6 6.3-2ubuntu0.3
ncurses-bin 6.3-2ubuntu0.3

Ubuntu 20.04 LTS
libncurses5 6.2-0ubuntu2.1+esm2
Available with Ubuntu Pro
libncurses6 6.2-0ubuntu2.1+esm2
Available with Ubuntu Pro
libtinfo5 6.2-0ubuntu2.1+esm2
Available with Ubuntu Pro
libtinfo6 6.2-0ubuntu2.1+esm2
Available with Ubuntu Pro
ncurses-bin 6.2-0ubuntu2.1+esm2
Available with Ubuntu Pro

Ubuntu 18.04 LTS
libncurses5 6.1-1ubuntu1.18.04.1+esm4
Available with Ubuntu Pro
libtinfo5 6.1-1ubuntu1.18.04.1+esm4
Available with Ubuntu Pro
ncurses-bin 6.1-1ubuntu1.18.04.1+esm4
Available with Ubuntu Pro

Ubuntu 16.04 LTS
libncurses5 6.0+20160213-1ubuntu1+esm7
Available with Ubuntu Pro
libtinfo5 6.0+20160213-1ubuntu1+esm7
Available with Ubuntu Pro
ncurses-bin 6.0+20160213-1ubuntu1+esm7
Available with Ubuntu Pro

Ubuntu 14.04 LTS
libncurses5 5.9+20140118-1ubuntu1+esm7
Available with Ubuntu Pro
libtinfo5 5.9+20140118-1ubuntu1+esm7
Available with Ubuntu Pro
ncurses-bin 5.9+20140118-1ubuntu1+esm7
Available with Ubuntu Pro

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

References:
https://ubuntu.com/security/notices/USN-8709-1
CVE-2025-6141

Package Information:
https://launchpad.net/ubuntu/+source/ncurses/6.4+20240113-1ubuntu2.2
https://launchpad.net/ubuntu/+source/ncurses/6.3-2ubuntu0.3

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