CVE Vulnerabilities

CVE-2013-4739

Exposure of Sensitive Information to an Unauthorized Actor

Published: Feb 03, 2014 | Modified: Nov 21, 2024
CVSS 3.x
N/A
Source:
NVD
CVSS 2.x
4.9 MEDIUM
AV:L/AC:L/Au:N/C:C/I:N/A:N
RedHat/V2
RedHat/V3
Ubuntu
LOW

The MSM camera driver for the Linux kernel 3.x, as used in Qualcomm Innovation Center (QuIC) Android contributions for MSM devices and other products, allows attackers to obtain sensitive information from kernel stack memory via (1) a crafted MSM_MCR_IOCTL_EVT_GET ioctl call, related to drivers/media/platform/msm/camera_v1/mercury/msm_mercury_sync.c, or (2) a crafted MSM_JPEG_IOCTL_EVT_GET ioctl call, related to drivers/media/platform/msm/camera_v2/jpeg_10/msm_jpeg_sync.c.

Weakness

The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.

Affected Software

Name Vendor Start Version End Version
Android-msm Codeaurora 2.6.29 (including) 2.6.29 (including)
Quic_mobile_station_modem_kernel Qualcomm 3.4 (including) 3.4 (including)
Linux-aws-fips Ubuntu trusty *
Linux-aws-fips Ubuntu xenial *
Linux-azure-fde Ubuntu focal *
Linux-azure-fips Ubuntu trusty *
Linux-azure-fips Ubuntu xenial *
Linux-euclid Ubuntu xenial *
Linux-flo Ubuntu trusty *
Linux-flo Ubuntu xenial *
Linux-fsl-imx51 Ubuntu lucid *
Linux-gcp-fips Ubuntu trusty *
Linux-gcp-fips Ubuntu xenial *
Linux-gke Ubuntu focal *
Linux-gke Ubuntu xenial *
Linux-gkeop Ubuntu focal *
Linux-gkeop-5.15 Ubuntu focal *
Linux-goldfish Ubuntu trusty *
Linux-goldfish Ubuntu xenial *
Linux-grouper Ubuntu trusty *
Linux-linaro-omap Ubuntu precise *
Linux-linaro-omap Ubuntu quantal *
Linux-linaro-shared Ubuntu precise *
Linux-linaro-shared Ubuntu quantal *
Linux-linaro-vexpress Ubuntu precise *
Linux-linaro-vexpress Ubuntu quantal *
Linux-lts-trusty Ubuntu precise/esm *
Linux-lts-utopic Ubuntu trusty *
Linux-lts-vivid Ubuntu trusty *
Linux-lts-wily Ubuntu trusty *
Linux-maguro Ubuntu trusty *
Linux-mako Ubuntu trusty *
Linux-mako Ubuntu xenial *
Linux-manta Ubuntu trusty *
Linux-mvl-dove Ubuntu lucid *
Linux-oem Ubuntu xenial *
Linux-qcm-msm Ubuntu lucid *
Linux-qcm-msm Ubuntu precise *
Linux-qcm-msm Ubuntu quantal *
Linux-raspi2 Ubuntu focal *
Linux-realtime Ubuntu jammy *
Linux-riscv Ubuntu focal *
Linux-riscv Ubuntu jammy *

Extended Description

There are many different kinds of mistakes that introduce information exposures. The severity of the error can range widely, depending on the context in which the product operates, the type of sensitive information that is revealed, and the benefits it may provide to an attacker. Some kinds of sensitive information include:

Information might be sensitive to different parties, each of which may have their own expectations for whether the information should be protected. These parties include:

Information exposures can occur in different ways:

It is common practice to describe any loss of confidentiality as an “information exposure,” but this can lead to overuse of CWE-200 in CWE mapping. From the CWE perspective, loss of confidentiality is a technical impact that can arise from dozens of different weaknesses, such as insecure file permissions or out-of-bounds read. CWE-200 and its lower-level descendants are intended to cover the mistakes that occur in behaviors that explicitly manage, store, transfer, or cleanse sensitive information.

Potential Mitigations

  • Compartmentalize the system to have “safe” areas where trust boundaries can be unambiguously drawn. Do not allow sensitive data to go outside of the trust boundary and always be careful when interfacing with a compartment outside of the safe area.
  • Ensure that appropriate compartmentalization is built into the system design, and the compartmentalization allows for and reinforces privilege separation functionality. Architects and designers should rely on the principle of least privilege to decide the appropriate time to use privileges and the time to drop privileges.

References