An issue was discovered in post.trm in Gnuplot 5.2.5. This issue allows an attacker to conduct a buffer overflow with an arbitrary amount of data in the PSoptions function. This flaw is caused by a missing size check of an argument passed to the "set font" function. This issue occurs when the Gnuplot postscript terminal is used as a backend.

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 dfgenerateasciiarrayentry. 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.

An issue was discovered in cairo.trm in Gnuplot 5.2.5. This issue allows an attacker to conduct a buffer overflow with an arbitrary amount of data in the cairotrmoptions function. This flaw is caused by a missing size check of an argument passed to the "set font" function. This issue occurs when the Gnuplot pngcairo terminal is used as a backend.

Buffer overflow in the French documentation patch for Gnuplot 3.7 in SuSE Linux before 8.0 allows local users to execute arbitrary code as root via unknown attack vectors.

A flaw was found in gnuplot. The CANVAStext() function may lead to a segmentation fault and cause a system crash.

A flaw was found in gnuplot. The GetAnnotateString() function may lead to a segmentation fault and cause a system crash.

A flaw was found in gnuplot. The xstrftime() function may lead to a segmentation fault, causing a system crash.

A flaw was found in gnuplot. The X11graphics() function may lead to a segmentation fault and cause a system crash.

A flaw was found in gnuplot. The plot3dpoints() function may lead to a segmentation fault and cause a system crash.

gnuplot 6.1 is affected by heap-buffer-overflow when executing function utf8copyone. This may result in local code execution.