gnuplot is affected by a heap buffer overflow at function utf8_copy_one.

The remote SUSE Linux SLES15 / SLES_SAP15 / openSUSE 15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2025:01811-1 advisory.

    - CVE-2025-31176: invalid read leads to segmentation fault on plot3d_points (bsc#1240325).
    - CVE-2025-31177: improper bounds check leads to heap-buffer overflow on utf8_copy_one (bsc#1240326).
    - CVE-2025-31178: unvalidated user input leads to segmentation fault on GetAnnotateString (bsc#1240327).
    - CVE-2025-31179: improper verification of time values leads to segmentation fault on xstrftime     (bsc#1240328).
    - CVE-2025-31180: unchecked invalid pointer access leads to segmentation fault on CANVAS_text     (bsc#1240329).
    - CVE-2025-31181: double fclose() call leads to segmentation fault on X11_graphics (bsc#1240330).
    - CVE-2025-3359: out-of-bounds read when parsing font names may lead to a segmentation fault     (bsc#1241684).

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

An update of the gnuplot package has been released.

ID	Name	Product	Family	Severity
237776	SUSE SLES15 / openSUSE 15 Security Update : gnuplot (SUSE-SU-2025:01811-1)	Nessus	SuSE Local Security Checks	medium
237569	Photon OS 4.0: Gnuplot PHSA-2025-4.0-0806	Nessus	PhotonOS Local Security Checks	medium
236797	Photon OS 5.0: Gnuplot PHSA-2025-5.0-0522	Nessus	PhotonOS Local Security Checks	medium

Detections

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CVE-2025-31177

medium

Tenable Plugins

medium

medium

medium