Vulnerabilities
Misconfiguration
Runtime Security
Compliance
CVE Vulnerabilities

CVE-2024-9632

Heap-based Buffer Overflow

Published: Oct 30, 2024 | Modified: Nov 21, 2024
CVSS 3.x
N/A
Source:
NVD
CVSS 2.x
RedHat/V2
RedHat/V3
7.8 IMPORTANT
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Ubuntu
MEDIUM
Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2024-9632
CWEhttps://cwe.mitre.org/data/definitions/122.html

A flaw was found in the X.org server. Due to improperly tracked allocation size in _XkbSetCompatMap, a local attacker may be able to trigger a buffer overflow condition via a specially crafted payload, leading to denial of service or local privilege escalation in distributions where the X.org server is run with root privileges.

Weakness

A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().

Affected Software

Name Vendor Start Version End Version
Red Hat Enterprise Linux 7 Extended Lifecycle Support RedHat tigervnc-0:1.8.0-34.el7_9 *
Red Hat Enterprise Linux 8 RedHat xorg-x11-server-0:1.20.11-25.el8_10 *
Red Hat Enterprise Linux 8 RedHat xorg-x11-server-Xwayland-0:21.1.3-17.el8_10 *
Red Hat Enterprise Linux 8 RedHat tigervnc-0:1.13.1-14.el8_10 *
Red Hat Enterprise Linux 8.2 Advanced Update Support RedHat tigervnc-0:1.9.0-15.el8_2.12 *
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support RedHat tigervnc-0:1.11.0-8.el8_4.11 *
Red Hat Enterprise Linux 8.4 Telecommunications Update Service RedHat tigervnc-0:1.11.0-8.el8_4.11 *
Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions RedHat tigervnc-0:1.11.0-8.el8_4.11 *
Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support RedHat tigervnc-0:1.12.0-6.el8_6.12 *
Red Hat Enterprise Linux 8.6 Telecommunications Update Service RedHat tigervnc-0:1.12.0-6.el8_6.12 *
Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions RedHat tigervnc-0:1.12.0-6.el8_6.12 *
Red Hat Enterprise Linux 8.8 Extended Update Support RedHat tigervnc-0:1.12.0-15.el8_8.11 *
Red Hat Enterprise Linux 9 RedHat tigervnc-0:1.14.1-1.el9_5 *
Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions RedHat tigervnc-0:1.11.0-22.el9_0.12 *
Red Hat Enterprise Linux 9.2 Extended Update Support RedHat tigervnc-0:1.12.0-14.el9_2.9 *
Red Hat Enterprise Linux 9.4 Extended Update Support RedHat tigervnc-0:1.13.1-8.el9_4.4 *
Xorg-server Ubuntu devel *
Xorg-server Ubuntu esm-infra/bionic *
Xorg-server Ubuntu esm-infra/xenial *
Xorg-server Ubuntu focal *
Xorg-server Ubuntu jammy *
Xorg-server Ubuntu noble *
Xorg-server Ubuntu oracular *
Xorg-server Ubuntu trusty/esm *
Xorg-server Ubuntu upstream *
Xorg-server-hwe-16.04 Ubuntu esm-infra/xenial *
Xorg-server-hwe-18.04 Ubuntu esm-infra/bionic *
Xwayland Ubuntu devel *
Xwayland Ubuntu jammy *
Xwayland Ubuntu noble *
Xwayland Ubuntu oracular *
Xwayland Ubuntu upstream *

Potential Mitigations

  • Use automatic buffer overflow detection mechanisms that are offered by certain compilers or compiler extensions. Examples include: the Microsoft Visual Studio /GS flag, Fedora/Red Hat FORTIFY_SOURCE GCC flag, StackGuard, and ProPolice, which provide various mechanisms including canary-based detection and range/index checking.
  • D3-SFCV (Stack Frame Canary Validation) from D3FEND [REF-1334] discusses canary-based detection in detail.
  • Run or compile the software using features or extensions that randomly arrange the positions of a program’s executable and libraries in memory. Because this makes the addresses unpredictable, it can prevent an attacker from reliably jumping to exploitable code.
  • Examples include Address Space Layout Randomization (ASLR) [REF-58] [REF-60] and Position-Independent Executables (PIE) [REF-64]. Imported modules may be similarly realigned if their default memory addresses conflict with other modules, in a process known as “rebasing” (for Windows) and “prelinking” (for Linux) [REF-1332] using randomly generated addresses. ASLR for libraries cannot be used in conjunction with prelink since it would require relocating the libraries at run-time, defeating the whole purpose of prelinking.
  • For more information on these techniques see D3-SAOR (Segment Address Offset Randomization) from D3FEND [REF-1335].

References

Aqua Security is the largest pure-play cloud native security company, providing customers the freedom to innovate and run their businesses with minimal friction. The Aqua Cloud Native Security Platform provides prevention, detection, and response automation across the entire application lifecycle to secure the build, secure cloud infrastructure and secure running workloads wherever they are deployed.
Copyright © 2024 Aqua Security Software Ltd.   Privacy Policy | Terms of Use