In binder_transaction of binder.c in the Android kernel, there is a possible out of bounds write due to an integer overflow. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is needed for exploitation.

The remote Ubuntu 18.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-4157-2 advisory.

    USN-4157-1 fixed vulnerabilities in the Linux kernel for Ubuntu 19.04. This update provides the     corresponding updates for the Linux Hardware Enablement (HWE) kernel from Ubuntu 19.04 for Ubuntu 18.04     LTS.

    Wen Huang discovered that the Marvell Wi-Fi device driver in the Linux kernel did not properly perform     bounds checking, leading to a heap overflow. A local attacker could use this to cause a denial of service     (system crash) or possibly execute arbitrary code. (CVE-2019-14814, CVE-2019-14815, CVE-2019-14816)

    Matt Delco discovered that the KVM hypervisor implementation in the Linux kernel did not properly perform     bounds checking when handling coalesced MMIO write operations. A local attacker with write access to     /dev/kvm could use this to cause a denial of service (system crash). (CVE-2019-14821)

    Hui Peng and Mathias Payer discovered that the 91x Wi-Fi driver in the Linux kernel did not properly     handle error conditions on initialization, leading to a double-free vulnerability. A physically proximate     attacker could use this to cause a denial of service (system crash). (CVE-2019-15504)

    It was discovered that the Technisat DVB-S/S2 USB device driver in the Linux kernel contained a buffer     overread. A physically proximate attacker could use this to cause a denial of service (system crash) or     possibly expose sensitive information. (CVE-2019-15505)

    Brad Spengler discovered that a Spectre mitigation was improperly implemented in the ptrace susbsystem of     the Linux kernel. A local attacker could possibly use this to expose sensitive information.
    (CVE-2019-15902)

    It was discovered that the IPv6 RDS implementation in the Linux kernel did not properly initialize fields     in a data structure returned to user space. A local attacker could use this to expose sensitive     information (kernel memory). Please note that the RDS protocol is disabled via blocklist in Ubuntu by     default. (CVE-2019-16714)

    It was discovered that an integer overflow existed in the Binder implementation of the Linux kernel,     leading to a buffer overflow. A local attacker could use this to escalate privileges. (CVE-2019-2181)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Wen Huang discovered that the Marvell Wi-Fi device driver in the Linux kernel did not properly perform bounds checking, leading to a heap overflow. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2019-14814, CVE-2019-14815, CVE-2019-14816)

Matt Delco discovered that the KVM hypervisor implementation in the Linux kernel did not properly perform bounds checking when handling coalesced MMIO write operations. A local attacker with write access to /dev/kvm could use this to cause a denial of service (system crash).
(CVE-2019-14821)

Hui Peng and Mathias Payer discovered that the 91x Wi-Fi driver in the Linux kernel did not properly handle error conditions on initialization, leading to a double-free vulnerability. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2019-15504)

It was discovered that the Technisat DVB-S/S2 USB device driver in the Linux kernel contained a buffer overread. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly expose sensitive information. (CVE-2019-15505)

Brad Spengler discovered that a Spectre mitigation was improperly implemented in the ptrace susbsystem of the Linux kernel. A local attacker could possibly use this to expose sensitive information.
(CVE-2019-15902)

It was discovered that the IPv6 RDS implementation in the Linux kernel did not properly initialize fields in a data structure returned to user space. A local attacker could use this to expose sensitive information (kernel memory). Please note that the RDS protocol is blacklisted in Ubuntu by default. (CVE-2019-16714)

It was discovered that an integer overflow existed in the Binder implementation of the Linux kernel, leading to a buffer overflow. A local attacker could use this to escalate privileges. (CVE-2019-2181).

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	Name	Product	Family	Severity
130147	Ubuntu 18.04 LTS : Linux kernel (HWE) vulnerabilities (USN-4157-2)	Nessus	Ubuntu Local Security Checks	critical
130003	Ubuntu 19.04 : Linux kernel vulnerabilities (USN-4157-1)	Nessus	Ubuntu Local Security Checks	critical

Detections

Analytics

CVE-2019-2181

high

Tenable Plugins

critical

critical