Lynx before 2.8.9dev.16 is vulnerable to a use after free in the HTML parser resulting in memory disclosure, because HTML_put_string() can append a chunk onto itself.

The remote Redhat Enterprise Linux 7 host has one or more packages installed that are affected by multiple vulnerabilities that have been acknowledged by the vendor but will not be patched.

  - lynx: Invalid URL parsing of pages containing '?' (CVE-2016-9179)

  - lynx: Use after free in HTML.c:HTML_put_string() can lead to memory disclosure (CVE-2017-1000211)

Note that Nessus has not tested for these issues but has instead relied on the package manager's report that the package is installed.

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

The remote Ubuntu 16.04 ESM / 18.04 ESM / 20.04 ESM host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-4800-1 advisory.

    It was discovered that Lynx incorrectly handled certain URLs. A remote attacker could possibly use this     issue to obtain sensitive information or other unspecified impact. This issue only affected Ubuntu 16.04     ESM. (CVE-2016-9179)

    It was discovered that Lynx incorrectly handled certain HTML files. A remote attacker could possibly use     this issue to obtain sensitive information. This issue only affected Ubuntu 16.04 ESM. (CVE-2017-1000211)

    Thorsten Glaser discovered that Lynx mishandles the userinfo subcomponents of a URI. An attacker     monitoring the network could discover cleartext credentials because they may appear in SNI data.
    (CVE-2021-38165)

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

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

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

  - Lynx is a text-based Web browser. Lynx does not display     any images,but it does support frames, tables, and most     other HTML tags. One advantage Lynx has over graphical     browsers is speed Lynx starts and exits quickly and     swiftly displays web pages.Security Fix(es):Lynx before     2.8.9dev.16 is vulnerable to a use after free in the     HTML parser resulting in memory disclosure, because     HTML_put_string() can append a chunk onto     itself.(CVE-2017-1000211)

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.

- update to the latest upstream pre-release (fixes     CVE-2017-1000211)

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.

This update for lynx fixes the following issues :

Security issue fixed :

  - CVE-2017-1000211: Fix use after free in the HTMLparser     that can resulting in memory disclosure (bsc#1068885).

This update was imported from the SUSE:SLE-12:Update update project.

It was discovered that there was a use-after-free vulnerability in the HTML parser of lynx-cur, a terminal-based web browser. This could have led to memory/information disclosure.

For Debian 7 'Wheezy', this issue has been fixed in lynx-cur version 2.8.8dev.12-2+deb7u2.

We recommend that you upgrade your lynx-cur packages.

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

ID	Name	Product	Family	Severity
199082	RHEL 7 : lynx (Unpatched Vulnerability)	Nessus	Red Hat Local Security Checks	high
195457	RHEL 7 : lynx (Unpatched Vulnerability) (deprecated)	Nessus	Red Hat Local Security Checks	high
183113	Ubuntu 16.04 ESM / 18.04 ESM / 20.04 ESM : Lynx vulnerabilities (USN-4800-1)	Nessus	Ubuntu Local Security Checks	high
135539	EulerOS 2.0 SP3 : lynx (EulerOS-SA-2020-1410)	Nessus	Huawei Local Security Checks	medium
105476	Fedora 26 : lynx (2017-bf172b2035)	Nessus	Fedora Local Security Checks	medium
105226	openSUSE Security Update : lynx (openSUSE-2017-1332)	Nessus	SuSE Local Security Checks	medium
104678	Debian DLA-1175-1 : lynx-cur security update	Nessus	Debian Local Security Checks	medium

Detections

Analytics

CVE-2017-1000211

medium

Tenable Plugins

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high

high

medium

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medium