The Alias feature in SnakeYAML before 1.26 allows entity expansion during a load operation, a related issue to CVE-2003-1564.

The remote Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS / 20.04 LTS host has a package installed that is affected by a vulnerability as referenced in the USN-7368-1 advisory.

    It was discovered that SnakeYAML incorrectly handled recursive entity references. An attacker could     possibly use this issue to cause SnakeYAML to crash, resulting in a denial of service.

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.

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

  - The Alias feature in SnakeYAML before 1.26 allows entity expansion during a load operation, a related     issue to CVE-2003-1564. (CVE-2017-18640)

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

The remote Rocky Linux 8 host has a package installed that is affected by a vulnerability as referenced in the RLSA-2020:4807 advisory.

  - The Alias feature in SnakeYAML before 1.26 allows entity expansion during a load operation, a related     issue to CVE-2003-1564. (CVE-2017-18640)

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

The remote host is affected by the vulnerability described in GLSA-202305-28 (snakeyaml: Multiple Vulnerabilities)

  - The Alias feature in SnakeYAML before 1.26 allows entity expansion during a load operation, a related     issue to CVE-2003-1564. (CVE-2017-18640)

  - Using snakeYAML to parse untrusted YAML files may be vulnerable to Denial of Service attacks (DOS). If the     parser is running on user supplied input, an attacker may supply content that causes the parser to crash     by stackoverflow. (CVE-2022-38749, CVE-2022-38750, CVE-2022-38751)

  - Using snakeYAML to parse untrusted YAML files may be vulnerable to Denial of Service attacks (DOS). If the     parser is running on user supplied input, an attacker may supply content that causes the parser to crash     by stack-overflow. (CVE-2022-38752)

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

The remote AlmaLinux 8 host has a package installed that is affected by a vulnerability as referenced in the ALSA-2020:4807 advisory.

  - The Alias feature in SnakeYAML 1.18 allows entity expansion during a load operation, a related issue to     CVE-2003-1564. (CVE-2017-18640)

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 SUSE15 host has packages installed that are affected by a vulnerability as referenced in the openSUSE-SU-2021:1876-1 advisory.

  - The Alias feature in SnakeYAML 1.18 allows entity expansion during a load operation, a related issue to     CVE-2003-1564. (CVE-2017-18640)

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 SLED15 / SLES15 host has a package installed that is affected by a vulnerability as referenced in the SUSE-SU-2021:1876-1 advisory.

  - The Alias feature in SnakeYAML before 1.26 allows entity expansion during a load operation, a related     issue to CVE-2003-1564. (CVE-2017-18640)

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

This update for snakeyaml fixes the following issues :

  - Upgrade to 1.28

  - CVE-2017-18640: The Alias feature allows entity     expansion during a load operation (bsc#1159488,     bsc#1186088)

This update was imported from the SUSE:SLE-15-SP2:Update update project.

According to its self-reported version number, the version of JFrog Artifactory installed on the remote host is prior to 6.23.0. It is, therefore, affected by multiple vulnerabilities:

  - The Alias feature in SnakeYAML 1.18 allows entity expansion during a load operation. (CVE-2017-18640)

  - The file name encoding algorithm used internally in Apache Commons Compress 1.15 to 1.18 can get into an infinite     loop when faced with specially crafted inputs. This can lead to a denial of service attack if an attacker can choose     the file names inside of an archive created by Compress. (CVE-2019-12402)

  - The OpenID client application in Atlassian Crowd before version 3.6.2, and from version 3.7.0 before 3.7.1     allows remote attackers to perform a Denial of Service attack via an XML Entity Expansion vulnerability. (CVE-2019-20104)

  - Go before 1.13.13 and 1.14.x before 1.14.5 has a data race in some net/http servers, as demonstrated by the     httputil.ReverseProxy Handler, because it reads a request body and writes a response at the same time. (CVE-2020-15586)

  - PKCE support is not implemented in accordance with the RFC for OAuth 2.0 for Native Apps. Without the use of PKCE,     an attacker is able to obtain the authorization code using a malicious app on the client-side and use it to gain     authorization to the protected resource. (CVE-2020-7692)

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

The remote CentOS Linux 8 host has a package installed that is affected by a vulnerability as referenced in the CESA-2020:4807 advisory.

  - snakeyaml: Billion laughs attack via alias feature (CVE-2017-18640)

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

The remote Oracle Linux 8 host has a package installed that is affected by a vulnerability as referenced in the ELSA-2020-4807 advisory.

    [0.12.0-6]
    - Fix CVE-2017-18640 by using updated snakeyaml.

Tenable has extracted the preceding description block directly from the Oracle Linux 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 Redhat Enterprise Linux 8 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2020:4807 advisory.

    Prometheus JMX Exporter is a JMX to Prometheus exporter: a collector that can be configured to scrape and     expose MBeans of a JMX target.

    Security Fix(es):

    * snakeyaml: Billion laughs attack via alias feature (CVE-2017-18640)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

    Additional Changes:

    For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.3 Release Notes     linked from the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

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

Update to version 1.26.

Resolves CVE-2017-18640.

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

ID	Name	Product	Family	Severity
233302	Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS / 20.04 LTS : SnakeYAML vulnerability (USN-7368-1)	Nessus	Ubuntu Local Security Checks	high
221189	Linux Distros Unpatched Vulnerability : CVE-2017-18640	Nessus	Misc.	high
185080	Rocky Linux 8 : prometheus-jmx-exporter (RLSA-2020:4807)	Nessus	Rocky Linux Local Security Checks	high
176195	GLSA-202305-28 : snakeyaml: Multiple Vulnerabilities	Nessus	Gentoo Local Security Checks	high
157622	AlmaLinux 8 : prometheus-jmx-exporter (ALSA-2020:4807)	Nessus	Alma Linux Local Security Checks	high
151753	openSUSE 15 Security Update : snakeyaml (openSUSE-SU-2021:1876-1)	Nessus	SuSE Local Security Checks	high
150699	SUSE SLED15 / SLES15 Security Update : snakeyaml (SUSE-SU-2021:1876-1)	Nessus	SuSE Local Security Checks	high
150471	openSUSE Security Update : snakeyaml (openSUSE-2021-855)	Nessus	SuSE Local Security Checks	high
147722	JFrog < 6.23.0 Multiple Vulnerabilities	Nessus	Misc.	critical
145816	CentOS 8 : prometheus-jmx-exporter (CESA-2020:4807)	Nessus	CentOS Local Security Checks	high
142758	Oracle Linux 8 : prometheus-jmx-exporter (ELSA-2020-4807)	Nessus	Oracle Linux Local Security Checks	high
142438	RHEL 8 : prometheus-jmx-exporter (RHSA-2020:4807)	Nessus	Red Hat Local Security Checks	high
135988	Fedora 31 : snakeyaml (2020-23012fafbc)	Nessus	Fedora Local Security Checks	high

Detections

Analytics

CVE-2017-18640

high

Tenable Plugins

high

high

high

high

high

high

high

high

critical

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