PT-2019-6839 · Haskell · Haskell-Tls-Extra

Published 2019-12-05 · Updated 2025-11-14 · CVE-2013-0243

Positive Technologies (AI Summary)

CVSS v2.0

5.8

Medium

Base vector

AV:N/AC:M/Au:N/C:P/I:P/A:N

Name of the Vulnerable Software and Affected Versions haskell-tls-extra versions prior to 0.6.1

Description The issue concerns a problem with certificate validation where the Basic Constraints attribute is not properly checked. This means any certificate is treated as a CA certificate, allowing an attacker to sign another certificate with an arbitrary subject DN or domain name, which would be accepted. This flaw can lead to Man in the Middle (MITM) attacks on TLS connections.

Recommendations For haskell-tls-extra versions prior to 0.6.1, update to version 0.6.1 or later to resolve the issue.

Fix

RCE

Weakness Enumeration

CWE-20

Related Identifiers

CVE-2013-0243

HSEC-2023-0005

Affected Products

Haskell-Tls-Extra

References · 11

• https://security-tracker.debian.org/tracker/CVE-2013-0243 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2013-0243 · Security Note
• https://osv.dev/vulnerability/HSEC-2023-0005 · Vendor Advisory
• https://github.com/haskell-tls/hs-tls/commit/15885c0649ceabd2f4d2913df8ac6dc63d6b3b37 · Note
• https://github.com/haskell-tls/hs-tls/issues/29 · Note
• https://github.com/haskell/security-advisories · Note
• https://access.redhat.com/security/cve/cve-2013-0243 · Note
• https://openwall.com/lists/oss-security/2013/01/30/6 · Note
• https://raw.githubusercontent.com/haskell/security-advisories/refs/heads/generated/osv-export · Note
• http://openwall.com/lists/oss-security/2013/01/30/6 · Note
• https://haskell.github.io/security-advisories · Note