In GnuPG before 2.5.17, a long signature packet length causes parse_signature to return success with sig->data[] set to a NULL value, leading to a denial of service (application crash).

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

  - In GnuPG before 2.5.17, a long signature packet length causes parse_signature to return success with
    sig->data[] set to a NULL value, leading to a denial of service (application crash). (CVE-2026-24883)

The remote SUSE Linux SLES16 / SLES_SAP16 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:20195-1 advisory.

    - CVE-2026-24882: stack-based buffer overflow in TPM2 PKDECRYPT for TPM-backed RSA and ECC keys     (bsc#1257396).
    - CVE-2026-24883: denial of service due to long signature packet length causing parse_signature to return     success with sig->data[] set to a NULL value (bsc#1257395).
    - gpg.fail/filename: GnuPG Accepts Path Separators and Path Traversals in Literal Data Filename Field     (bsc#1256389).

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 openSUSE 16 host has packages installed that are affected by multiple vulnerabilities as referenced in the openSUSE-SU-2026:20136-1 advisory.

    - CVE-2026-24882: stack-based buffer overflow in TPM2 PKDECRYPT for TPM-backed RSA and ECC keys     (bsc#1257396).
    - CVE-2026-24883: denial of service due to long signature packet length causing parse_signature to return     success with sig->data[] set to a NULL value (bsc#1257395).
    - gpg.fail/filename: GnuPG Accepts Path Separators and Path Traversals in Literal Data Filename Field     (bsc#1256389).

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

  - In GnuPG before 2.5.17, a long signature packet length causes parse_signature to return success with     sig->data[] set to a NULL value, leading to a denial of service (application crash). (CVE-2026-24883)

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

ID	Name	Product	Family	Type	Severity
460962	Echo: gnupg2: security update to 2.4.8-5	Tenable Cloud Security	Echo Local Security Checks	Local	medium
460962	Echo: gnupg2: security update to 2.4.8-5	Tenable Self-Hosted Container Security	Echo Local Security Checks	Local	medium
297838	SUSE SLES16 Security Update : gpg2 (SUSE-SU-2026:20195-1)	Nessus	SuSE Local Security Checks	Local	high
297773	openSUSE 16 Security Update : gpg2 (openSUSE-SU-2026:20136-1)	Nessus	SuSE Local Security Checks	Local	high
296934	Linux Distros Unpatched Vulnerability : CVE-2026-24883	Nessus	Misc.	Local	medium

Detections

Analytics

CVE-2026-24883

medium

Tenable Plugins

medium

medium

high

high

medium