Buffer overflow in Red Hat Enterprise Linux 6
CVE-2024-21886
A heap buffer overflow flaw was found in the DisableDevice function in the X.Org server. This issue may lead to an application crash or, in some circumstances, remote code execution in SSH X11 forwarding environments.
Vulnerability class: Buffer Overflow
EPSS: 0.014 (70.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 6 Extended Lifecycle Support - Extension — versions 0:1.1.0-25.el6_10.13
- Red Hat Enterprise Linux 7 — versions 0:1.20.4-27.el7_9, 0:1.8.0-31.el7_9
- Red Hat Enterprise Linux 8 — versions 0:1.13.1-2.el8_9.7, 0:1.20.11-22.el8, 0:21.1.3-15.el8
- Red Hat Enterprise Linux 8.2 Advanced Update Support — versions 0:1.9.0-15.el8_2.9
- Red Hat Enterprise Linux 8.2 Telecommunications Update Service — versions 0:1.9.0-15.el8_2.9
- Red Hat Enterprise Linux 8.2 Update Services For Sap Solutions — versions 0:1.9.0-15.el8_2.9
- Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support — versions 0:1.11.0-8.el8_4.8
- Red Hat Enterprise Linux 8.4 Telecommunications Update Service — versions 0:1.11.0-8.el8_4.8
- Red Hat Enterprise Linux 8.4 Update Services For Sap Solutions — versions 0:1.11.0-8.el8_4.8
Weakness classification (CWE)
Public proof-of-concept exploits
References
- secalert@redhat.com (x_refsource_REDHAT, vendor-advisory)
- secalert@redhat.com (x_refsource_REDHAT, vendor-advisory)
- secalert@redhat.com (x_refsource_REDHAT, vendor-advisory)
- secalert@redhat.com (x_refsource_REDHAT, vendor-advisory)
- secalert@redhat.com (x_refsource_REDHAT, vendor-advisory)
- secalert@redhat.com (x_refsource_REDHAT, vendor-advisory)
- secalert@redhat.com (x_refsource_REDHAT, vendor-advisory)
- secalert@redhat.com (x_refsource_REDHAT, vendor-advisory)
- secalert@redhat.com (x_refsource_REDHAT, vendor-advisory)
- secalert@redhat.com (x_refsource_REDHAT, vendor-advisory)
Frequently asked questions
- What is CVE-2024-21886?
- CVE-2024-21886 is a high-severity vulnerability in Red Hat Enterprise Linux 6, classified under Heap-based Buffer Overflow. CVSS score: 7.8/10. Published 2024-02-28.
- How severe is CVE-2024-21886?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2024-21886 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.