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.

This plugin has been deprecated as it does not adhere to established standards for this style of check.

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.

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.

An update of the gnupg package has been released.

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.

ID	Name	Product	Family	Severity
196174	RHEL 5 : gnupg2 (Unpatched Vulnerability) (deprecated)	Nessus	Red Hat Local Security Checks	high
140650	Ubuntu 18.04 LTS : GnuPG vulnerability (USN-4516-1)	Nessus	Ubuntu Local Security Checks	high
137813	EulerOS Virtualization for ARM 64 3.0.6.0 : gnupg2 (EulerOS-SA-2020-1706)	Nessus	Huawei Local Security Checks	high
135868	Photon OS 2.0: Gnupg PHSA-2020-2.0-0229	Nessus	PhotonOS Local Security Checks	high
135791	Photon OS 3.0: Gnupg PHSA-2020-3.0-0080	Nessus	PhotonOS Local Security Checks	high
135737	EulerOS 2.0 SP8 : gnupg2 (EulerOS-SA-2020-1504)	Nessus	Huawei Local Security Checks	high
135488	Photon OS 1.0: Gnupg PHSA-2020-1.0-0288	Nessus	PhotonOS Local Security Checks	high

Detections

Analytics

CVE-2019-14855

high

Tenable Plugins

high

high

high

high

high

high

high