An Invalid Pointer vulnerability exists in GNU patch 2.7 via the another_hunk function, which causes a Denial of Service.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - An Invalid Pointer vulnerability exists in GNU patch 2.7 via the another_hunk function, which causes a
    Denial of Service. (CVE-2021-45261)

The AlmaLinux 9.2 host has a package installed that is affected by a vulnerability as referenced in the TuxCare ALMALINUX9.2:CLSA-2026:1788355583 advisory.

  - An Invalid Pointer vulnerability exists in GNU patch 2.7 via the another_hunk function, which causes a     Denial of Service. (CVE-2021-45261)

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

The remote SUSE Linux SLES12 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:2922-1 advisory.

    This update for patch fixes the following issues

    - CVE-2021-45261: Invalid Pointer via another_hunk function (bsc#1194037).
    - CVE-2026-56288: crafted unified-diff patch file can cause null pointer derefence (bsc#1271167).
    - CVE-2026-56289: improper validation of hunk line offsets can lead to denial of service (bsc#1271166).

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.

The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 / openSUSE 15 host has a package installed that is affected by a vulnerability as referenced in the SUSE-SU-2026:0781-1 advisory.

    - CVE-2021-45261: Clear range of pointers before they are used/freed (bsc#1194037).

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

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

The remote SUSE Linux SLES16 / SLES_SAP16 host has a package installed that is affected by a vulnerability as referenced in the SUSE-SU-2026:20431-1 advisory.

    - CVE-2021-45261: invalid pointer via another_hunk function can cause a denial-of-service (bsc#1194037).

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

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

The remote openSUSE 16 host has a package installed that is affected by a vulnerability as referenced in the openSUSE- SU-2026:20227-1 advisory.

    - CVE-2021-45261: invalid pointer via another_hunk function can cause a denial-of-service (bsc#1194037).

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

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

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - An Invalid Pointer vulnerability exists in GNU patch 2.7 via the another_hunk function, which causes a     Denial of Service. (CVE-2021-45261)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Type	Severity
462887	Echo: patch: security update to 2.7.6-7+e0	Tenable Cloud Security	Echo Local Security Checks	Local	medium
462887	Echo: patch: security update to 2.7.6-7+e0	Tenable Self-Hosted Container Security	Echo Local Security Checks	Local	medium
360232	AlmaLinux 9.2 [TuxCare] Security Update: patch (ALMALINUX9.2:CLSA-2026:1788355583)	Nessus	Alma Linux Local Security Checks	Local	medium
326962	SUSE SLES12 Security Update : patch (SUSE-SU-2026:2922-1)	Nessus	SuSE Local Security Checks	Local	medium
300818	SUSE SLED15 / SLES15 / openSUSE 15 Security Update : patch (SUSE-SU-2026:0781-1)	Nessus	SuSE Local Security Checks	Local	medium
299572	SUSE SLES16 Security Update : patch (SUSE-SU-2026:20431-1)	Nessus	SuSE Local Security Checks	Local	medium
299145	openSUSE 16 Security Update : patch (openSUSE-SU-2026:20227-1)	Nessus	SuSE Local Security Checks	Local	medium
259260	Linux Distros Unpatched Vulnerability : CVE-2021-45261	Nessus	Misc.	Local	medium

Detections

Analytics

CVE-2021-45261

medium

Tenable Plugins

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