CVE-2012-5821

MEDIUM

Lynx - Improper Certificate Validation

Title source: rule

Description

Lynx does not verify that the server's certificate is signed by a trusted certification authority, which allows man-in-the-middle attackers to spoof SSL servers via a crafted certificate, related to improper use of a certain GnuTLS function.

References (5)

[Exploit] http://www.cs.utexas.edu/~shmat/shmat_ccs12.pdf

[Broken Link] http://www.mandriva.com/security/advisories?name=MDVSA-2013:101

[Third Party Advisory] http://www.ubuntu.com/usn/USN-1642-1

[Third Party Advisory, VDB Entry] https://exchange.xforce.ibmcloud.com/vulnerabilities/79930

[Third Party Advisory] https://wiki.mageia.org/en/Support/Advisories/MGASA-2012-0351

Scores

CVSS v3 5.9

EPSS 0.0024

EPSS Percentile 46.5%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

Classification

CWE

CWE-295

Status draft

Affected Products (5)

lynx/lynx

canonical/ubuntu_linux

Timeline

Published Nov 04, 2012

Tracked Since Feb 18, 2026