Vigil@nce - Gnuplot: use after free via print_set_output
April 2021 by Vigil@nce
This bulletin was written by Vigil@nce : https://vigilance.fr/computer-vulnerability
SYNTHESIS OF THE VULNERABILITY
Impacted products: openSUSE Leap, SLES.
Severity: 2/4.
Consequences: user access/rights, denial of service on service,
denial of service on client.
Provenance: document.
Confidence: confirmed by the editor (5/5).
Creation date: 23/02/2021.
DESCRIPTION OF THE VULNERABILITY
An attacker can force the usage of a freed memory area via
print_set_output() of Gnuplot, in order to trigger a denial of
service, and possibly to run code.
ACCESS TO THE FULL VIGIL@NCE BULLETIN
https://vigilance.fr/vulnerability/Gnuplot-use-after-free-via-print-set-output-34657