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

  - A flaw was found in the way certificate signatures could be forged using collisions found in the SHA-1
    algorithm. An attacker could use this weakness to create forged certificate signatures. This issue affects
    GnuPG versions before 2.2.18. (CVE-2019-14855)

An update of the gnupg package has been released.

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

  - A flaw was found in the way certificate signatures could be forged using collisions found in the SHA-1     algorithm. An attacker could use this weakness to create forged certificate signatures. This issue affects     GnuPG versions before 2.2.18. (CVE-2019-14855)

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

According to the version of the gnupg2 packages installed, the EulerOS installation on the remote host is affected by the following vulnerability :

  - A flaw was found in the way certificate signatures     could be forged using collisions found in the SHA-1     algorithm. An attacker could use this weakness to     create forged certificate signatures. This issue     affects GnuPG versions before 2.2.18.(CVE-2019-14855)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

According to the version of the gnupg2 package installed, the EulerOS Virtualization for ARM 64 installation on the remote host is affected by the following vulnerability :

  - A flaw was found in the way certificate signatures     could be forged using collisions found in the SHA-1     algorithm. An attacker could use this weakness to     create forged certificate signatures. This issue     affects GnuPG versions before 2.2.18.(CVE-2019-14855)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote Ubuntu 18.04 LTS host has packages installed that are affected by a vulnerability as referenced in the USN-4516-1 advisory.

    It was discovered that GnuPG signatures could be forged when the SHA-1 algorithm is being used. This     update removes validating signatures based on SHA-1 that were generated after 2019-01-19. In environments     where this is still required, a new option --allow-weak-key-signatures can be used to revert this     behaviour.

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

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

ID	Name	Product	Family	Published	Updated	Severity
404697	Alpine: gnupg: security update to 2.2.19-r0	Tenable Cloud Security	Alpine Linux Local Security Checks	10/31/2023	7/2/2026	high
423978	Alpine: multiple gnupg packages: security update to 2.2.18-r0	Tenable Cloud Security	Alpine Linux Local Security Checks	4/4/2025	7/2/2026	high
404697	Alpine: gnupg: security update to 2.2.19-r0	Tenable Self-Hosted Container Security	Alpine Linux Local Security Checks	10/31/2023	7/2/2026	high
423978	Alpine: multiple gnupg packages: security update to 2.2.18-r0	Tenable Self-Hosted Container Security	Alpine Linux Local Security Checks	4/4/2025	7/2/2026	high
135791	Photon OS 3.0: Gnupg PHSA-2020-3.0-0080	Nessus	PhotonOS Local Security Checks	4/21/2020	8/22/2025	high
135868	Photon OS 2.0: Gnupg PHSA-2020-2.0-0229	Nessus	PhotonOS Local Security Checks	4/22/2020	7/22/2024	high
232212	Linux Distros Unpatched Vulnerability : CVE-2019-14855	Nessus	Misc.	3/6/2025	7/17/2026	high
135737	EulerOS 2.0 SP8 : gnupg2 (EulerOS-SA-2020-1504)	Nessus	Huawei Local Security Checks	4/20/2020	3/15/2024	high
135488	Photon OS 1.0: Gnupg PHSA-2020-1.0-0288	Nessus	PhotonOS Local Security Checks	4/15/2020	3/18/2024	high
137813	EulerOS Virtualization for ARM 64 3.0.6.0 : gnupg2 (EulerOS-SA-2020-1706)	Nessus	Huawei Local Security Checks	6/25/2020	3/5/2024	high
140650	Ubuntu 18.04 LTS : GnuPG vulnerability (USN-4516-1)	Nessus	Ubuntu Local Security Checks	9/17/2020	8/27/2024	high

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