Skip to content
VulniPulse
Sign in
Highest advisory severityMedium 1 vendor · 1 advisory

CVE-2021-4189

CVE-2021-4189: 1 tracked advisory record across Red Hat. Compare vendor sources and published fix guidance.

Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.

NVD detail CVE.org

Vendor advisory comparison

Red Hat

1 advisory
  • Advisory severityMedium5.3

    Medium [CVE-2021-4189] flaw was found in Python, specifically in the FTP (File Transfer Protocol) client library in PASV (passive) mode

    CVE-2021-4189Source published Source updated

    A flaw was found in Python, specifically in the FTP (File Transfer Protocol) client library in PASV (passive) mode. The issue is how the FTP client trusts the host from the PASV response by default. This flaw allows an attacker to set up a malicious FTP server that can trick FTP clients into connecting back to a given IP address and port. This vulnerability could lead to FTP client scanning ports, which otherwise would not have been possible. Red Hat severity: Moderate — CVSS 5.3 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N). Weakness: CWE-252. Affected Red Hat products: Red Hat Enterprise Linux 8; Red Hat Software Collections for Red Hat Enterprise Linux 7; Red Hat Software Collections for Red Hat Enterprise Linux 7.7 EUS; Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7. Red Hat…

    Affected products in this advisory
    • Red Hat Enterprise Linux 8
    • Red Hat Software Collections for Red Hat Enterprise Linux 7.7 EUS
    • Red Hat Enterprise Linux 6
    • Red Hat package: python3
    Source-reported affected versions
    Affected-version details not available in this record.
    Source-reported fixed versions
    • python27:2.7-8060020220210185952.8cdc2268
    • python3-0:3.6.8-45.el8
    • rh-python38-babel-0:2.7.0-12.el7
    • rh-python38-python-0:3.8.11-2.el7

    10 more entries in the full advisory.

    Mitigation guidance
    No mitigation guidance extracted; consult the source.
    Full advisory and evidenceOpen source bulletin

Android app · Google Play

Monitor future Red Hat CVEs from your phone.

Choose a whole vendor or a precise platform, then receive matching security advisories by phone notification, email, or both. Coverage follows 34 official vendor sources and 160+ reviewed platform categories.

Matching phone alertsOptional email delivery
Get CVE alertsSee app features