Buffer overflow in Red Hat Enterprise Linux 6
CVE-2024-21885
A flaw was found in X.Org server. In the XISendDeviceHierarchyEvent function, it is possible to exceed the allocated array length when certain new device IDs are added to the xXIHierarchyInfo struct. This can trigger a heap buffer overflow condition, which may lead to an application crash or remote code execution in SSH X11 forwarding environments.
Vulnerability class: Buffer Overflow
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.014 (71.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 72nd percentile — 71.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.014 · newest: 0.014 · change: 0.000
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
- access.redhat.com/errata/RHSA-2024:0320 (vendor-advisory)
- access.redhat.com/errata/RHSA-2024:0557 (vendor-advisory)
- access.redhat.com/errata/RHSA-2024:0558 (vendor-advisory)
- access.redhat.com/errata/RHSA-2024:0597 (vendor-advisory)
- access.redhat.com/errata/RHSA-2024:0607 (vendor-advisory)
- access.redhat.com/errata/RHSA-2024:0614 (vendor-advisory)
- access.redhat.com/errata/RHSA-2024:0617 (vendor-advisory)
- access.redhat.com/errata/RHSA-2024:0621 (vendor-advisory)
- access.redhat.com/errata/RHSA-2024:0626 (vendor-advisory)
- access.redhat.com/errata/RHSA-2024:0629 (vendor-advisory)
Frequently asked questions
- What is CVE-2024-21885?
- CVE-2024-21885 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-2024-21885?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2024-21885 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.