Uncontrolled memory allocation in Linux kernel - CVE-2017-9725

Vulnerability identifier: #VU12262

CSH Severity: Low

CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2017-9725

CWE-ID: CWE-789

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local attacker to case DoS condition or gain elevated privileges on the target system.

The weakness exists in all Qualcomm products with Android releases from CAF during DMA allocation due to wrong data type of size allocation size gets truncated which makes allocation succeed when it should fail. A local attacker can cause the service to crash or gain root privileges.

Linux kernel
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for Power, big endian
Red Hat Enterprise Linux for Real Time
Red Hat Enterprise Linux Desktop
Red Hat Enterprise Linux Workstation
Red Hat Enterprise Linux Server
Red Hat Enterprise Linux for Scientific Computing
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for Real Time for NFV
Red Hat Enterprise Linux Server - TUS
Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Red Hat Enterprise Linux Server - AUS
Red Hat Enterprise Linux EUS Compute Node
Red Hat Enterprise Linux for Power, big endian - Extended Update Support
Red Hat Enterprise Linux Server - Extended Update Support

MRG Realtime
kernel (Red Hat package)
kernel-rt (Red Hat package)
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
Red Hat Enterprise Linux Server for x86_64 - Update Services for SAP Solutions
Red Hat Virtualization Host

Update to version 4.5.

kernel (Red Hat package) - addressed in versions 3.10.0-693.25.2.el7, 3.10.0-862.el7
kernel-rt (Red Hat package) - addressed in versions 3.10.0-693.25.2.rt56.612.el6rt, 3.10.0-862.rt56.804.el7

• https://source.codeaurora.org/quic/la/kernel/msm-4.4/commit/?h=aosp/android-4.4&id=1f8f9b566...

• Multiple vulnerabilities in Linux Kernel
• Red Hat update for kernel-rt
• Red Hat update for kernel
• Red Hat update for kernel
• Red Hat update for kernel-rt