1. Home
  2. Vulnerabilities
  3. CVE-2021-20239

CVE-2021-20239

CVSS v3.1 3.3 (Low)
33% Progress
CVSS v2.0 2.1 (Low)
21% Progress
EPSS 0.04 % (13th)
0.04% Progress
Affected Products 3
Advisories 6
Info CVSS EPSS CAPEC Affected Configurations References Security Advisories Packages & Software OVAL Tools, Exploits & PoC Graph Web & Social Timeline

A flaw was found in the Linux kernel in versions before 5.4.92 in the BPF protocol. This flaw allows an attacker with a local account to leak information about kernel internal addresses. The highest threat from this vulnerability is to confidentiality.

Weaknesses
CWE-119
Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-822
Untrusted Pointer Dereference
CVE Status
PUBLISHED
CNA
Red Hat, Inc.
Published Date
2021-05-28 11:15:08
(3 years ago)
Updated Date
2023-11-07 03:29:01
(10 months ago)

Affected Products

Fedoraproject

Linux

Redhat

Configuration #1

    CPE23 From Up To
  Linux Kernel prior 5.4.92 version cpe:2.3:o:linux:linux_kernel < 5.4.92

Configuration #2

    CPE23 From Up To
  Redhat Enterprise Linux 5.0 cpe:2.3:o:redhat:enterprise_linux:5.0
  Redhat Enterprise Linux 6.0 cpe:2.3:o:redhat:enterprise_linux:6.0
  Redhat Enterprise Linux 8.0 cpe:2.3:o:redhat:enterprise_linux:8.0

Configuration #3

    CPE23 From Up To
  Fedoraproject Fedora 33 cpe:2.3:o:fedoraproject:fedora:33