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Ubuntu 10.04 LTS / 11.10 / 12.04 LTS / 12.10 : lynx-cur vulnerabilities (USN-1642-1)

medium Nessus Plugin ID 63108

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Synopsis

The remote Ubuntu host is missing a security-related patch.

Description

Dan Rosenberg discovered a heap-based buffer overflow in Lynx. If a user were tricked into opening a specially crafted page, a remote attacker could cause a denial of service via application crash, or possibly execute arbitrary code as the user invoking the program. This issue only affected Ubuntu 10.04 LTS. (CVE-2010-2810)

It was discovered that Lynx did not properly verify that an HTTPS certificate was signed by a trusted certificate authority. This could allow an attacker to perform a 'man in the middle' (MITM) attack which would make the user believe their connection is secure, but is actually being monitored. This update changes the behavior of Lynx such that self-signed certificates no longer validate. Users requiring the previous behavior can use the 'FORCE_SSL_PROMPT' option in lynx.cfg. (CVE-2012-5821).

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

Solution

Update the affected lynx-cur package.

See Also

https://usn.ubuntu.com/1642-1/

Plugin Details

Severity: Medium

ID: 63108

File Name: ubuntu_USN-1642-1.nasl

Version: 1.7

Type: local

Agent: unix

Published: 11/30/2012

Updated: 9/19/2019

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:lynx-cur, cpe:/o:canonical:ubuntu_linux:10.04:-:lts, cpe:/o:canonical:ubuntu_linux:11.10, cpe:/o:canonical:ubuntu_linux:12.04:-:lts, cpe:/o:canonical:ubuntu_linux:12.10

Required KB Items: Host/cpu, Host/Debian/dpkg-l, Host/Ubuntu, Host/Ubuntu/release

Exploit Ease: No known exploits are available

Patch Publication Date: 11/29/2012

Vulnerability Publication Date: 8/20/2010

Reference Information

CVE: CVE-2010-2810, CVE-2012-5821

BID: 42316

USN: 1642-1