Explore top 10 tips to secure your open-source projects now. Read More

×
Alerts This Week
Warning Icon 1 602
Alerts This Week
Warning Icon 1 602

Ubuntu 16.04 ESM USN-5477-1 Critical: Ncurses Denial of Service Threat

ubuntu
Calendar Grey June 14, 2022
Dist Ubuntu Esm H88
Tackling various ncurses vulnerabilities across Ubuntu versions to avert possible code execution or interruption of services.
Several security issues were fixed in ncurses.

Summary

Several security issues were fixed in ncurses.

Software Description:

- ncurses: shared libraries for terminal handling (32-bit)

Details:

Hosein Askari discovered that ncurses was incorrectly performing

memory management operations when dealing with long filenames while

writing structures into the file system. An attacker could possibly

use this issue to cause a denial of service or execute arbitrary

code. (CVE-2017-16879)

Chung-Yi Lin discovered that ncurses was incorrectly handling access

to invalid memory areas when parsing terminfo or termcap entries where

the use-name had invalid syntax. An attacker could possibly use this

issue to cause a denial of service. (CVE-2018-19211)

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. (CVE-2019-17594)

It was discovered that ncurses was incorrectly ...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service critical ubuntu ncurses issue

Update Instructions

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

Ubuntu 16.04 ESM:
   libncurses5                     6.0+20160213-1ubuntu1+esm2
   libtinfo5                       6.0+20160213-1ubuntu1+esm2
   ncurses-bin                     6.0+20160213-1ubuntu1+esm2

Ubuntu 14.04 ESM:
   libncurses5                     5.9+20140118-1ubuntu1+esm2
   libtinfo5                       5.9+20140118-1ubuntu1+esm2
   ncurses-bin                     5.9+20140118-1ubuntu1+esm2

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

References

  https://ubuntu.com/security/notices/USN-5477-1

  CVE-2017-16879, CVE-2018-19211, CVE-2019-17594, CVE-2019-17595,

  CVE-2021-39537, CVE-2022-29458

Severity
critical
Lowest
Low
Medium
High
Critical

June 14, 2022

Topics%20covered

Topics Covered

security advisory denial of service critical ubuntu ncurses issue

Package Information

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.