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Ubuntu 16.04 LTS: USN-4541-1 Critical: Gnuplot Buffer Overflow

ubuntu
Calendar Grey September 25, 2020
Dist Ubuntu Esm H88
The Ubuntu Security Advisory USN-4541-1 highlights various security flaws in Gnuplot that impact Ubuntu 16.04 LTS.
Several security issues were fixed in Gnuplot.

Summary

Several security issues were fixed in Gnuplot.

Software Description:

- gnuplot: Command-line driven interactive plotting program

Details:

Tim Blazytko, Cornelius Aschermann, Sergej Schumilo and Nils Bars

discovered that Gnuplot did not properly validate string sizes in the

df_generate_ascii_array_entry function. An attacker could possibly use

this issue to cause a heap buffer overflow, resulting in a denial of

service attack or arbitrary code execution. (CVE-2018-19490)

Tim Blazytko, Cornelius Aschermann, Sergej Schumilo and Nils Bars

discovered that Gnuplot did not properly validate string sizes in the

PS_options function when the Gnuplot postscript terminal is used as a

backend. An attacker could possibly use this issue to cause a buffer

overflow, resulting in a denial of service attack or arbitrary code

execution. (CVE-2018-19491)

Tim Blazytko, Cornelius Aschermann, Sergej Schumilo and Nils Bars

discovered that Gnuplot did not properly validate string ...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service buffer overflow code execution Ubuntu heap overflow gnuplot

Update Instructions

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

Ubuntu 16.04 LTS:
  gnuplot                         4.6.6-3ubuntu0.1
  gnuplot-data                    4.6.6-3ubuntu0.1
  gnuplot-nox                     4.6.6-3ubuntu0.1
  gnuplot-qt                      4.6.6-3ubuntu0.1
  gnuplot-tex                     4.6.6-3ubuntu0.1
  gnuplot-x11                     4.6.6-3ubuntu0.1

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

References

https://ubuntu.com/security/notices/USN-4541-1

CVE-2018-19490, CVE-2018-19491, CVE-2018-19492

Severity
critical
Lowest
Low
Medium
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Critical

September 25, 2020

Topics%20covered

Topics Covered

security advisory denial of service buffer overflow code execution Ubuntu heap overflow gnuplot

Package Information

https://launchpad.net/ubuntu/+source/gnuplot/4.6.6-3ubuntu0.1

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