Buffer overflow in Gnuplot - CVE-2020-25969

Vulnerability identifier: #VU78945

CSH Severity: High

CVSS v4: 8.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2020-25969

CWE-ID: CWE-119

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error within the plotrequest() function. A remote attacker can create a specially crafted file, trick the victim into opening it, trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Gnuplot
SUSE Linux Enterprise High Performance Computing 12
SUSE Linux Enterprise Server 12
SUSE Linux Enterprise Server for SAP Applications 12
Ubuntu
openEuler
gnuplot (Ubuntu package)
gnuplot-debugsource
gnuplot-debuginfo
gnuplot
gnuplot-help

Install updates from vendor's website.

gnuplot (Ubuntu package) - addressed in versions 4.6.4-2ubuntu0.1~esm1, 4.6.6-3ubuntu0.1+esm1, 5.2.2+dfsg1-2ubuntu1+esm1, 5.2.8+dfsg1-2ubuntu0.1~esm1
gnuplot-debugsource - update to 4.6.5-3.6.1
gnuplot-debuginfo - update to 4.6.5-3.6.1
gnuplot - update to 4.6.5-3.6.1
gnuplot - update to 5.0.6-13
gnuplot-debuginfo - update to 5.0.6-13
gnuplot-debugsource - update to 5.0.6-13
gnuplot-help - update to 5.0.6-13

• https://sourceforge.net/p/gnuplot/bugs/2311/

• Multiple vulnerabilitires in Gnuplot
• SUSE update for gnuplot
• openEuler update for gnuplot
• Ubuntu update for gnuplot