CVE-2018-19490

An issue was discovered in datafile.c in Gnuplot 5.2.5. This issue allows an attacker to conduct a heap-based buffer overflow with an arbitrary amount of data in df_generate_ascii_array_entry. To exploit this vulnerability, an attacker must pass an overlong string as the right bound of the range argument that is passed to the plot function.

This update for gnuplot fixes the following issues:

Security issues fixed:

• CVE-2018-19492: Fixed a buffer overflow in cairotrm_options function (bsc#1117463)
• CVE-2018-19491: Fixed a buffer overlow in the PS_options function (bsc#1117464)
• CVE-2018-19490: Fixed a heap-based buffer overflow in the df_generate_ascii_array_entry function (bsc#1117465)

This update was imported from the SUSE:SLE-15:Update update project.

These are all security issues fixed in the gnuplot-5.4.2-1.3 package on the GA media of openSUSE Tumbleweed.

This update for gnuplot fixes the following issues:

Security issues fixed:

• CVE-2018-19492: Fixed a buffer overflow in cairotrm_options function (bsc#1117463)
• CVE-2018-19491: Fixed a buffer overlow in the PS_options function (bsc#1117464)
• CVE-2018-19490: Fixed a heap-based buffer overflow in the df_generate_ascii_array_entry function (bsc#1117465)

This update for gnuplot fixes the following issues:

Following security issues were fixed:

• CVE-2018-19492: Fixed a buffer overflow in cairotrm_options function (bsc#1117463)
• CVE-2018-19491: Fixed a buffer overlow in the PS_options function (bsc#1117464)
• CVE-2018-19490: Fixed a heap-based buffer overflow in the df_generate_ascii_array_entry function (bsc#1117465)
• CVE-2017-9670: Fixed a uninitialized stack variable vulnerability which could lead to a Denial of Service (bsc#1044638)

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 sizes in the cairotrm_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-2018-19492)

Tim Blazytko, Cornelius Aschermann, Sergej Schumilo, and Nils Bars discovered that Gnuplot had several memory-related issues. An attacker could possibly use these issues to cause Gnuplot to experience a buffer overflow, resulting in a denial of service or arbitrary code execution. These issues only affected Ubuntu 14.04 LTS and Ubuntu 18.04 LTS. (CVE-2018-19490, CVE-2018-19491, CVE-2018-19492)

It was discovered that Gnuplot could write out-of-bounds due to the use of strncpy(). An attacker could possibly use this issue to enable the execution of arbitrary code. This issue only affected Ubuntu 20.04 LTS. (CVE-2020-25412)

It was discovered that Gnuplot incorrectly freed memory when executing print_set_output(). An attacker could possibly use this issue to enable the execution of arbitrary code. (CVE-2020-25559)

It was discovered that Gnuplot's plotrequest() function contained a buffer overflow. An attacker could possibly use this issue to cause Gnuplot to crash, resulting in a denial of service or arbitrary code execution. (CVE-2020-25969)

It was discovered that Gnuplot's boundary3d() function could be made to divide by zero. An attacker could possibly use this issue to cause Gnuplot to crash, resulting in a denial of service. (CVE-2021-44917)